-6x+3x-15=-21-15

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Solution for -6x+3x-15=-21-15 equation:


Simplifying
-6x + 3x + -15 = -21 + -15

Reorder the terms:
-15 + -6x + 3x = -21 + -15

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

Combine like terms: -21 + -15 = -36
-15 + -3x = -36

Solving
-15 + -3x = -36

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 + -3x = -36 + 15

Combine like terms: -15 + 15 = 0
0 + -3x = -36 + 15
-3x = -36 + 15

Combine like terms: -36 + 15 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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