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

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


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

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

Reorder the terms:
-18 + -3x = 7(6 + x)
-18 + -3x = (6 * 7 + x * 7)
-18 + -3x = (42 + 7x)

Solving
-18 + -3x = 42 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-18 + -3x + -7x = 42 + 7x + -7x

Combine like terms: -3x + -7x = -10x
-18 + -10x = 42 + 7x + -7x

Combine like terms: 7x + -7x = 0
-18 + -10x = 42 + 0
-18 + -10x = 42

Add '18' to each side of the equation.
-18 + 18 + -10x = 42 + 18

Combine like terms: -18 + 18 = 0
0 + -10x = 42 + 18
-10x = 42 + 18

Combine like terms: 42 + 18 = 60
-10x = 60

Divide each side by '-10'.
x = -6

Simplifying
x = -6

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