15x-3(x-6)=90

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Solution for 15x-3(x-6)=90 equation:


Simplifying
15x + -3(x + -6) = 90

Reorder the terms:
15x + -3(-6 + x) = 90
15x + (-6 * -3 + x * -3) = 90
15x + (18 + -3x) = 90

Reorder the terms:
18 + 15x + -3x = 90

Combine like terms: 15x + -3x = 12x
18 + 12x = 90

Solving
18 + 12x = 90

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 12x = 90 + -18

Combine like terms: 18 + -18 = 0
0 + 12x = 90 + -18
12x = 90 + -18

Combine like terms: 90 + -18 = 72
12x = 72

Divide each side by '12'.
x = 6

Simplifying
x = 6

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