4a-21=88

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Solution for 4a-21=88 equation: 


Simplifying
4a + -21 = 88

Reorder the terms:
-21 + 4a = 88

Solving
-21 + 4a = 88

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 4a = 88 + 21

Combine like terms: -21 + 21 = 0
0 + 4a = 88 + 21
4a = 88 + 21

Combine like terms: 88 + 21 = 109
4a = 109

Divide each side by '4'.
a = 27.25

Simplifying
a = 27.25

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