18a-4=86

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Solution for 18a-4=86 equation: 


Simplifying
18a + -4 = 86

Reorder the terms:
-4 + 18a = 86

Solving
-4 + 18a = 86

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 + 18a = 86 + 4

Combine like terms: -4 + 4 = 0
0 + 18a = 86 + 4
18a = 86 + 4

Combine like terms: 86 + 4 = 90
18a = 90

Divide each side by '18'.
a = 5

Simplifying
a = 5

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