8x+9=9(x-7)

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


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

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

Reorder the terms:
9 + 8x = 9(-7 + x)
9 + 8x = (-7 * 9 + x * 9)
9 + 8x = (-63 + 9x)

Solving
9 + 8x = -63 + 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.
9 + 8x + -9x = -63 + 9x + -9x

Combine like terms: 8x + -9x = -1x
9 + -1x = -63 + 9x + -9x

Combine like terms: 9x + -9x = 0
9 + -1x = -63 + 0
9 + -1x = -63

Add '-9' to each side of the equation.
9 + -9 + -1x = -63 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = -63 + -9
-1x = -63 + -9

Combine like terms: -63 + -9 = -72
-1x = -72

Divide each side by '-1'.
x = 72

Simplifying
x = 72

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