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Algebra Problem Solver

Online help for algebra makes you thankful for the internet all over again, doesn't it? A multitude of free online algebra problem solvers give you your answers instantly. But the real test is, do you know what they did and how they did it? Just looking at how a problem is solved is not going to be any help at all. If you've tried to cram before an algebra test by just glancing through your text, you already know this by now. That's not to say that online algebra problem solvers can't help. Tutoring sites offer comprehensive solutions to your algebra woes by providing a step by step algebra problem solver. The idea is for you to learn what you want to, when you want to.

Algebra Problem Solver With Steps

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Algebra problem solvers free with steps are competent and knowledgeable. Students can learn how much they want at their own pace. This ensures that each new topic is clear before moving on to the next. The algebra math problem solvers explain anything you don't quite get and provide access to plenty of practice material, all designed to help you ace the subject!

Solved Example

Question:
Area and perimeter of a rectangular rug is 84 square feet and 38 feet. Find the dimensions of the rectangular rug.

Solution:
Let 'x' be length and 'y' be width of the rectangular rug.

Step 1:
Given,
Area of rectangular rug = 84 $feet^2$

and perimeter = 38 feet

Step 2:

[ Area of rectangle = length * width]

[Perimeter of rectangle = 2(length + width)]

=> xy = 84

=> y = $\frac{84}{x}$                     .........................(1)

and 

2(x + y) = 38                                    ........................(2)


Step 3:

Put (1) in (2)

=> 2(x + $\frac{84}{x}$) = 38

=> x + $\frac{84}{x}$ = $\frac{38}{2}$

=> x + $\frac{84}{x}$ = 19

=> $x^2$ + 84 = 19x

=> $x^2$ - 19x + 84 = 0
which is quadratic equation

Step 4:

Solve for x, $x^2$ - 19x + 84 = 0

=> $x^2$ - 19x + 84 = 0

=> $x^2$ - 7x - 12x + 84 = 0

=> x(x - 7) - 12(x - 7) = 0

=> (x - 12)(x - 7) = 0

Step 5:

either x - 12 = 0   or   x - 7 = 0

Case 1:
x - 12 = 0

=> x = 12

So Length of rectangular rug = 12 feet

and width = $\frac{84}{12}$ = 7 feet

Case 2:
x - 7 = 0

=> x = 7

So Length of rectangular rug = 7 feet

and width = $\frac{84}{7}$ = 12 feet

 

Algebra Problem Solver Online

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Online problem solvers for algebra give you convenience and safety by letting you learn from your home. All you need is an internet connection and you can log in to get in touch with any step by step algebra problem solver. The step by step demonstration for each problem is accompanied by explanation to make it easy and comprehensible. The internet gives you plenty of free algebra problem solvers to choose from. The key is to find a problem solver for algebra that gives you more than just a rapidly calculated answer. You can find free online algebra problem solvers for any grade of algebra, from high school to college algebra.

Solved Example

Question: At present a father is 5 times his son's age. After 15 years, the father's age will be thrice the son's age. What is the father's present age ?
Solution:
Let the present age of the son = x years

Therefore father's age = 5x
(Father is 5 times his son's age)

Step 1:
After 15 years:

Son's age = x + 15

and father's age = 5x + 15

Step 2:
 Father's age = Thrice the son's age

=> 5x + 15 = 3(x + 15)

=> 5x + 15 = 3x + 45

=> 5x - 3x = 45 - 15

=> 2x = 30

Divide each side by 2

=> x = 15

Step 3:
Father's present age = 5x = 5 * 15

= 75

Hence, father is of 75 years. answer