4x-12=-2+21

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Solution for 4x-12=-2+21 equation:


Simplifying
4x + -12 = -2 + 21

Reorder the terms:
-12 + 4x = -2 + 21

Combine like terms: -2 + 21 = 19
-12 + 4x = 19

Solving
-12 + 4x = 19

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 4x = 19 + 12

Combine like terms: -12 + 12 = 0
0 + 4x = 19 + 12
4x = 19 + 12

Combine like terms: 19 + 12 = 31
4x = 31

Divide each side by '4'.
x = 7.75

Simplifying
x = 7.75

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