2x-15=-21

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Solution for 2x-15=-21 equation: 


Simplifying
2x + -15 = -21

Reorder the terms:
-15 + 2x = -21

Solving
-15 + 2x = -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 + 2x = -21 + 15

Combine like terms: -15 + 15 = 0
0 + 2x = -21 + 15
2x = -21 + 15

Combine like terms: -21 + 15 = -6
2x = -6

Divide each side by '2'.
x = -3

Simplifying
x = -3

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