7X+8=9X-16

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Solution for 7X+8=9X-16 equation: 


Simplifying
7X + 8 = 9X + -16

Reorder the terms:
8 + 7X = 9X + -16

Reorder the terms:
8 + 7X = -16 + 9X

Solving
8 + 7X = -16 + 9X

Solving for variable 'X'.

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

Add '-9X' to each side of the equation.
8 + 7X + -9X = -16 + 9X + -9X

Combine like terms: 7X + -9X = -2X
8 + -2X = -16 + 9X + -9X

Combine like terms: 9X + -9X = 0
8 + -2X = -16 + 0
8 + -2X = -16

Add '-8' to each side of the equation.
8 + -8 + -2X = -16 + -8

Combine like terms: 8 + -8 = 0
0 + -2X = -16 + -8
-2X = -16 + -8

Combine like terms: -16 + -8 = -24
-2X = -24

Divide each side by '-2'.
X = 12

Simplifying
X = 12

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