4x-30=78

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Solution for 4x-30=78 equation: 


Simplifying
4x + -30 = 78

Reorder the terms:
-30 + 4x = 78

Solving
-30 + 4x = 78

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 4x = 78 + 30

Combine like terms: -30 + 30 = 0
0 + 4x = 78 + 30
4x = 78 + 30

Combine like terms: 78 + 30 = 108
4x = 108

Divide each side by '4'.
x = 27

Simplifying
x = 27

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