-9=3(x+2)+6(x-1)

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Solution for -9=3(x+2)+6(x-1) equation:


Simplifying
-9 = 3(x + 2) + 6(x + -1)

Reorder the terms:
-9 = 3(2 + x) + 6(x + -1)
-9 = (2 * 3 + x * 3) + 6(x + -1)
-9 = (6 + 3x) + 6(x + -1)

Reorder the terms:
-9 = 6 + 3x + 6(-1 + x)
-9 = 6 + 3x + (-1 * 6 + x * 6)
-9 = 6 + 3x + (-6 + 6x)

Reorder the terms:
-9 = 6 + -6 + 3x + 6x

Combine like terms: 6 + -6 = 0
-9 = 0 + 3x + 6x
-9 = 3x + 6x

Combine like terms: 3x + 6x = 9x
-9 = 9x

Solving
-9 = 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 + -9x

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

Add '9' to each side of the equation.
-9 + 9 + -9x = 0 + 9

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

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

Divide each side by '-9'.
x = -1

Simplifying
x = -1

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