-18=3(x+6)-7x

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Solution for -18=3(x+6)-7x equation:


Simplifying
-18 = 3(x + 6) + -7x

Reorder the terms:
-18 = 3(6 + x) + -7x
-18 = (6 * 3 + x * 3) + -7x
-18 = (18 + 3x) + -7x

Combine like terms: 3x + -7x = -4x
-18 = 18 + -4x

Solving
-18 = 18 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-18 + 4x = 18 + -4x + 4x

Combine like terms: -4x + 4x = 0
-18 + 4x = 18 + 0
-18 + 4x = 18

Add '18' to each side of the equation.
-18 + 18 + 4x = 18 + 18

Combine like terms: -18 + 18 = 0
0 + 4x = 18 + 18
4x = 18 + 18

Combine like terms: 18 + 18 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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