7a-4=18

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Solution for 7a-4=18 equation: 


Simplifying
7a + -4 = 18

Reorder the terms:
-4 + 7a = 18

Solving
-4 + 7a = 18

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 + 7a = 18 + 4

Combine like terms: -4 + 4 = 0
0 + 7a = 18 + 4
7a = 18 + 4

Combine like terms: 18 + 4 = 22
7a = 22

Divide each side by '7'.
a = 3.142857143

Simplifying
a = 3.142857143

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