5x-3(3x+18)=-90

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Solution for 5x-3(3x+18)=-90 equation:


Simplifying
5x + -3(3x + 18) = -90

Reorder the terms:
5x + -3(18 + 3x) = -90
5x + (18 * -3 + 3x * -3) = -90
5x + (-54 + -9x) = -90

Reorder the terms:
-54 + 5x + -9x = -90

Combine like terms: 5x + -9x = -4x
-54 + -4x = -90

Solving
-54 + -4x = -90

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + -4x = -90 + 54

Combine like terms: -54 + 54 = 0
0 + -4x = -90 + 54
-4x = -90 + 54

Combine like terms: -90 + 54 = -36
-4x = -36

Divide each side by '-4'.
x = 9

Simplifying
x = 9

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