4a-4=28

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Solution for 4a-4=28 equation: 


Simplifying
4a + -4 = 28

Reorder the terms:
-4 + 4a = 28

Solving
-4 + 4a = 28

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 4a = 28 + 4

Combine like terms: -4 + 4 = 0
0 + 4a = 28 + 4
4a = 28 + 4

Combine like terms: 28 + 4 = 32
4a = 32

Divide each side by '4'.
a = 8

Simplifying
a = 8

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