(3x-1)(x+1)=3x^2

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Solution for (3x-1)(x+1)=3x^2 equation:


Simplifying
(3x + -1)(x + 1) = 3x2

Reorder the terms:
(-1 + 3x)(x + 1) = 3x2

Reorder the terms:
(-1 + 3x)(1 + x) = 3x2

Multiply (-1 + 3x) * (1 + x)
(-1(1 + x) + 3x * (1 + x)) = 3x2
((1 * -1 + x * -1) + 3x * (1 + x)) = 3x2
((-1 + -1x) + 3x * (1 + x)) = 3x2
(-1 + -1x + (1 * 3x + x * 3x)) = 3x2
(-1 + -1x + (3x + 3x2)) = 3x2

Combine like terms: -1x + 3x = 2x
(-1 + 2x + 3x2) = 3x2

Add '-3x2' to each side of the equation.
-1 + 2x + 3x2 + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-1 + 2x + 0 = 3x2 + -3x2
-1 + 2x = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-1 + 2x = 0

Solving
-1 + 2x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + 2x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2x = 0 + 1
2x = 0 + 1

Combine like terms: 0 + 1 = 1
2x = 1

Divide each side by '2'.
x = 0.5

Simplifying
x = 0.5

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