(x-9)=8(x-9)

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


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

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

Remove parenthesis around (-9 + x)
-9 + x = 8(x + -9)

Reorder the terms:
-9 + x = 8(-9 + x)
-9 + x = (-9 * 8 + x * 8)
-9 + x = (-72 + 8x)

Solving
-9 + x = -72 + 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 + x + -8x = -72 + 8x + -8x

Combine like terms: x + -8x = -7x
-9 + -7x = -72 + 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + -7x = -72 + 0
-9 + -7x = -72

Add '9' to each side of the equation.
-9 + 9 + -7x = -72 + 9

Combine like terms: -9 + 9 = 0
0 + -7x = -72 + 9
-7x = -72 + 9

Combine like terms: -72 + 9 = -63
-7x = -63

Divide each side by '-7'.
x = 9

Simplifying
x = 9

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