-6x-3(-4x-18)=90

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Solution for -6x-3(-4x-18)=90 equation:


Simplifying
-6x + -3(-4x + -18) = 90

Reorder the terms:
-6x + -3(-18 + -4x) = 90
-6x + (-18 * -3 + -4x * -3) = 90
-6x + (54 + 12x) = 90

Reorder the terms:
54 + -6x + 12x = 90

Combine like terms: -6x + 12x = 6x
54 + 6x = 90

Solving
54 + 6x = 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 + 6x = 90 + -54

Combine like terms: 54 + -54 = 0
0 + 6x = 90 + -54
6x = 90 + -54

Combine like terms: 90 + -54 = 36
6x = 36

Divide each side by '6'.
x = 6

Simplifying
x = 6

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