7(x+2)+3(x+2)=7x-7

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Solution for 7(x+2)+3(x+2)=7x-7 equation:


Simplifying
7(x + 2) + 3(x + 2) = 7x + -7

Reorder the terms:
7(2 + x) + 3(x + 2) = 7x + -7
(2 * 7 + x * 7) + 3(x + 2) = 7x + -7
(14 + 7x) + 3(x + 2) = 7x + -7

Reorder the terms:
14 + 7x + 3(2 + x) = 7x + -7
14 + 7x + (2 * 3 + x * 3) = 7x + -7
14 + 7x + (6 + 3x) = 7x + -7

Reorder the terms:
14 + 6 + 7x + 3x = 7x + -7

Combine like terms: 14 + 6 = 20
20 + 7x + 3x = 7x + -7

Combine like terms: 7x + 3x = 10x
20 + 10x = 7x + -7

Reorder the terms:
20 + 10x = -7 + 7x

Solving
20 + 10x = -7 + 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.
20 + 10x + -7x = -7 + 7x + -7x

Combine like terms: 10x + -7x = 3x
20 + 3x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
20 + 3x = -7 + 0
20 + 3x = -7

Add '-20' to each side of the equation.
20 + -20 + 3x = -7 + -20

Combine like terms: 20 + -20 = 0
0 + 3x = -7 + -20
3x = -7 + -20

Combine like terms: -7 + -20 = -27
3x = -27

Divide each side by '3'.
x = -9

Simplifying
x = -9

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