4x-20=64

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Solution for 4x-20=64 equation: 


Simplifying
4x + -20 = 64

Reorder the terms:
-20 + 4x = 64

Solving
-20 + 4x = 64

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 4x = 64 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = 64 + 20
4x = 64 + 20

Combine like terms: 64 + 20 = 84
4x = 84

Divide each side by '4'.
x = 21

Simplifying
x = 21

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