(3-x)(5+x)-4x=(2-x)(8+x)-x

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Solution for (3-x)(5+x)-4x=(2-x)(8+x)-x equation:


Simplifying
(3 + -1x)(5 + x) + -4x = (2 + -1x)(8 + x) + -1x

Multiply (3 + -1x) * (5 + x)
(3(5 + x) + -1x * (5 + x)) + -4x = (2 + -1x)(8 + x) + -1x
((5 * 3 + x * 3) + -1x * (5 + x)) + -4x = (2 + -1x)(8 + x) + -1x
((15 + 3x) + -1x * (5 + x)) + -4x = (2 + -1x)(8 + x) + -1x
(15 + 3x + (5 * -1x + x * -1x)) + -4x = (2 + -1x)(8 + x) + -1x
(15 + 3x + (-5x + -1x2)) + -4x = (2 + -1x)(8 + x) + -1x

Combine like terms: 3x + -5x = -2x
(15 + -2x + -1x2) + -4x = (2 + -1x)(8 + x) + -1x

Reorder the terms:
15 + -2x + -4x + -1x2 = (2 + -1x)(8 + x) + -1x

Combine like terms: -2x + -4x = -6x
15 + -6x + -1x2 = (2 + -1x)(8 + x) + -1x

Multiply (2 + -1x) * (8 + x)
15 + -6x + -1x2 = (2(8 + x) + -1x * (8 + x)) + -1x
15 + -6x + -1x2 = ((8 * 2 + x * 2) + -1x * (8 + x)) + -1x
15 + -6x + -1x2 = ((16 + 2x) + -1x * (8 + x)) + -1x
15 + -6x + -1x2 = (16 + 2x + (8 * -1x + x * -1x)) + -1x
15 + -6x + -1x2 = (16 + 2x + (-8x + -1x2)) + -1x

Combine like terms: 2x + -8x = -6x
15 + -6x + -1x2 = (16 + -6x + -1x2) + -1x

Reorder the terms:
15 + -6x + -1x2 = 16 + -6x + -1x + -1x2

Combine like terms: -6x + -1x = -7x
15 + -6x + -1x2 = 16 + -7x + -1x2

Add 'x2' to each side of the equation.
15 + -6x + -1x2 + x2 = 16 + -7x + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
15 + -6x + 0 = 16 + -7x + -1x2 + x2
15 + -6x = 16 + -7x + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
15 + -6x = 16 + -7x + 0
15 + -6x = 16 + -7x

Solving
15 + -6x = 16 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
15 + -6x + 7x = 16 + -7x + 7x

Combine like terms: -6x + 7x = 1x
15 + 1x = 16 + -7x + 7x

Combine like terms: -7x + 7x = 0
15 + 1x = 16 + 0
15 + 1x = 16

Add '-15' to each side of the equation.
15 + -15 + 1x = 16 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = 16 + -15
1x = 16 + -15

Combine like terms: 16 + -15 = 1
1x = 1

Divide each side by '1'.
x = 1

Simplifying
x = 1

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