3(7-2x)-15=18

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Solution for 3(7-2x)-15=18 equation:


Simplifying
3(7 + -2x) + -15 = 18
(7 * 3 + -2x * 3) + -15 = 18
(21 + -6x) + -15 = 18

Reorder the terms:
21 + -15 + -6x = 18

Combine like terms: 21 + -15 = 6
6 + -6x = 18

Solving
6 + -6x = 18

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -6x = 18 + -6

Combine like terms: 6 + -6 = 0
0 + -6x = 18 + -6
-6x = 18 + -6

Combine like terms: 18 + -6 = 12
-6x = 12

Divide each side by '-6'.
x = -2

Simplifying
x = -2

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