27-4x=-21

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Solution for 27-4x=-21 equation: 


Simplifying
27 + -4x = -21

Solving
27 + -4x = -21

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + -4x = -21 + -27

Combine like terms: 27 + -27 = 0
0 + -4x = -21 + -27
-4x = -21 + -27

Combine like terms: -21 + -27 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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