9x-9=-9(x-7)

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


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

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

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

Solving
-9 + 9x = 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 + 9x + 9x = 63 + -9x + 9x

Combine like terms: 9x + 9x = 18x
-9 + 18x = 63 + -9x + 9x

Combine like terms: -9x + 9x = 0
-9 + 18x = 63 + 0
-9 + 18x = 63

Add '9' to each side of the equation.
-9 + 9 + 18x = 63 + 9

Combine like terms: -9 + 9 = 0
0 + 18x = 63 + 9
18x = 63 + 9

Combine like terms: 63 + 9 = 72
18x = 72

Divide each side by '18'.
x = 4

Simplifying
x = 4

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