15-3x-3x=18+3

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Solution for 15-3x-3x=18+3 equation:


Simplifying
15 + -3x + -3x = 18 + 3

Combine like terms: -3x + -3x = -6x
15 + -6x = 18 + 3

Combine like terms: 18 + 3 = 21
15 + -6x = 21

Solving
15 + -6x = 21

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + -6x = 21 + -15

Combine like terms: 15 + -15 = 0
0 + -6x = 21 + -15
-6x = 21 + -15

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

Divide each side by '-6'.
x = -1

Simplifying
x = -1

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