5(x+1)-5(x-1)=x+7

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Solution for 5(x+1)-5(x-1)=x+7 equation:


Simplifying
5(x + 1) + -5(x + -1) = x + 7

Reorder the terms:
5(1 + x) + -5(x + -1) = x + 7
(1 * 5 + x * 5) + -5(x + -1) = x + 7
(5 + 5x) + -5(x + -1) = x + 7

Reorder the terms:
5 + 5x + -5(-1 + x) = x + 7
5 + 5x + (-1 * -5 + x * -5) = x + 7
5 + 5x + (5 + -5x) = x + 7

Reorder the terms:
5 + 5 + 5x + -5x = x + 7

Combine like terms: 5 + 5 = 10
10 + 5x + -5x = x + 7

Combine like terms: 5x + -5x = 0
10 + 0 = x + 7
10 = x + 7

Reorder the terms:
10 = 7 + x

Solving
10 = 7 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
10 + -1x = 7 + x + -1x

Combine like terms: x + -1x = 0
10 + -1x = 7 + 0
10 + -1x = 7

Add '-10' to each side of the equation.
10 + -10 + -1x = 7 + -10

Combine like terms: 10 + -10 = 0
0 + -1x = 7 + -10
-1x = 7 + -10

Combine like terms: 7 + -10 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3

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