7x-9=8x-17

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Solution for 7x-9=8x-17 equation:


Simplifying
7x + -9 = 8x + -17

Reorder the terms:
-9 + 7x = 8x + -17

Reorder the terms:
-9 + 7x = -17 + 8x

Solving
-9 + 7x = -17 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-9 + 7x + -8x = -17 + 8x + -8x

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

Combine like terms: 8x + -8x = 0
-9 + -1x = -17 + 0
-9 + -1x = -17

Add '9' to each side of the equation.
-9 + 9 + -1x = -17 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = -17 + 9
-1x = -17 + 9

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

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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