-3(x+7)+9=18

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Solution for -3(x+7)+9=18 equation:


Simplifying
-3(x + 7) + 9 = 18

Reorder the terms:
-3(7 + x) + 9 = 18
(7 * -3 + x * -3) + 9 = 18
(-21 + -3x) + 9 = 18

Reorder the terms:
-21 + 9 + -3x = 18

Combine like terms: -21 + 9 = -12
-12 + -3x = 18

Solving
-12 + -3x = 18

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + -3x = 18 + 12

Combine like terms: -12 + 12 = 0
0 + -3x = 18 + 12
-3x = 18 + 12

Combine like terms: 18 + 12 = 30
-3x = 30

Divide each side by '-3'.
x = -10

Simplifying
x = -10

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