8x-8+9x+9=-7

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Solution for 8x-8+9x+9=-7 equation:


Simplifying
8x + -8 + 9x + 9 = -7

Reorder the terms:
-8 + 9 + 8x + 9x = -7

Combine like terms: -8 + 9 = 1
1 + 8x + 9x = -7

Combine like terms: 8x + 9x = 17x
1 + 17x = -7

Solving
1 + 17x = -7

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 + 17x = -7 + -1

Combine like terms: 1 + -1 = 0
0 + 17x = -7 + -1
17x = -7 + -1

Combine like terms: -7 + -1 = -8
17x = -8

Divide each side by '17'.
x = -0.4705882353

Simplifying
x = -0.4705882353

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