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

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Solution for 9(x+1)+7(x+1)=7x-7 equation:


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

Reorder the terms:
9(1 + x) + 7(x + 1) = 7x + -7
(1 * 9 + x * 9) + 7(x + 1) = 7x + -7
(9 + 9x) + 7(x + 1) = 7x + -7

Reorder the terms:
9 + 9x + 7(1 + x) = 7x + -7
9 + 9x + (1 * 7 + x * 7) = 7x + -7
9 + 9x + (7 + 7x) = 7x + -7

Reorder the terms:
9 + 7 + 9x + 7x = 7x + -7

Combine like terms: 9 + 7 = 16
16 + 9x + 7x = 7x + -7

Combine like terms: 9x + 7x = 16x
16 + 16x = 7x + -7

Reorder the terms:
16 + 16x = -7 + 7x

Solving
16 + 16x = -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.
16 + 16x + -7x = -7 + 7x + -7x

Combine like terms: 16x + -7x = 9x
16 + 9x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
16 + 9x = -7 + 0
16 + 9x = -7

Add '-16' to each side of the equation.
16 + -16 + 9x = -7 + -16

Combine like terms: 16 + -16 = 0
0 + 9x = -7 + -16
9x = -7 + -16

Combine like terms: -7 + -16 = -23
9x = -23

Divide each side by '9'.
x = -2.555555556

Simplifying
x = -2.555555556

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