8x+8-15x+9=31

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Solution for 8x+8-15x+9=31 equation:


Simplifying
8x + 8 + -15x + 9 = 31

Reorder the terms:
8 + 9 + 8x + -15x = 31

Combine like terms: 8 + 9 = 17
17 + 8x + -15x = 31

Combine like terms: 8x + -15x = -7x
17 + -7x = 31

Solving
17 + -7x = 31

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + -7x = 31 + -17

Combine like terms: 17 + -17 = 0
0 + -7x = 31 + -17
-7x = 31 + -17

Combine like terms: 31 + -17 = 14
-7x = 14

Divide each side by '-7'.
x = -2

Simplifying
x = -2

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