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

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


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

Reorder the terms:
9(-2 + x) + -3(x + -1) = -1 + -1x
(-2 * 9 + x * 9) + -3(x + -1) = -1 + -1x
(-18 + 9x) + -3(x + -1) = -1 + -1x

Reorder the terms:
-18 + 9x + -3(-1 + x) = -1 + -1x
-18 + 9x + (-1 * -3 + x * -3) = -1 + -1x
-18 + 9x + (3 + -3x) = -1 + -1x

Reorder the terms:
-18 + 3 + 9x + -3x = -1 + -1x

Combine like terms: -18 + 3 = -15
-15 + 9x + -3x = -1 + -1x

Combine like terms: 9x + -3x = 6x
-15 + 6x = -1 + -1x

Solving
-15 + 6x = -1 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-15 + 6x + x = -1 + -1x + x

Combine like terms: 6x + x = 7x
-15 + 7x = -1 + -1x + x

Combine like terms: -1x + x = 0
-15 + 7x = -1 + 0
-15 + 7x = -1

Add '15' to each side of the equation.
-15 + 15 + 7x = -1 + 15

Combine like terms: -15 + 15 = 0
0 + 7x = -1 + 15
7x = -1 + 15

Combine like terms: -1 + 15 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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