3x-7(3x+18)=36

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Solution for 3x-7(3x+18)=36 equation:


Simplifying
3x + -7(3x + 18) = 36

Reorder the terms:
3x + -7(18 + 3x) = 36
3x + (18 * -7 + 3x * -7) = 36
3x + (-126 + -21x) = 36

Reorder the terms:
-126 + 3x + -21x = 36

Combine like terms: 3x + -21x = -18x
-126 + -18x = 36

Solving
-126 + -18x = 36

Solving for variable 'x'.

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

Add '126' to each side of the equation.
-126 + 126 + -18x = 36 + 126

Combine like terms: -126 + 126 = 0
0 + -18x = 36 + 126
-18x = 36 + 126

Combine like terms: 36 + 126 = 162
-18x = 162

Divide each side by '-18'.
x = -9

Simplifying
x = -9

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