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 = -8
-2X = -8

Divide each side by '-2'.
X = 4

Simplifying
X = 4

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