3x+2x-6=-21

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Solution for 3x+2x-6=-21 equation:


Simplifying
3x + 2x + -6 = -21

Reorder the terms:
-6 + 3x + 2x = -21

Combine like terms: 3x + 2x = 5x
-6 + 5x = -21

Solving
-6 + 5x = -21

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 + 5x = -21 + 6

Combine like terms: -6 + 6 = 0
0 + 5x = -21 + 6
5x = -21 + 6

Combine like terms: -21 + 6 = -15
5x = -15

Divide each side by '5'.
x = -3

Simplifying
x = -3

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