12x-21=-15-30

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Solution for 12x-21=-15-30 equation:


Simplifying
12x + -21 = -15 + -30

Reorder the terms:
-21 + 12x = -15 + -30

Combine like terms: -15 + -30 = -45
-21 + 12x = -45

Solving
-21 + 12x = -45

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 12x = -45 + 21

Combine like terms: -21 + 21 = 0
0 + 12x = -45 + 21
12x = -45 + 21

Combine like terms: -45 + 21 = -24
12x = -24

Divide each side by '12'.
x = -2

Simplifying
x = -2

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