7a-7=5a+18

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Solution for 7a-7=5a+18 equation:


Simplifying
7a + -7 = 5a + 18

Reorder the terms:
-7 + 7a = 5a + 18

Reorder the terms:
-7 + 7a = 18 + 5a

Solving
-7 + 7a = 18 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-7 + 7a + -5a = 18 + 5a + -5a

Combine like terms: 7a + -5a = 2a
-7 + 2a = 18 + 5a + -5a

Combine like terms: 5a + -5a = 0
-7 + 2a = 18 + 0
-7 + 2a = 18

Add '7' to each side of the equation.
-7 + 7 + 2a = 18 + 7

Combine like terms: -7 + 7 = 0
0 + 2a = 18 + 7
2a = 18 + 7

Combine like terms: 18 + 7 = 25
2a = 25

Divide each side by '2'.
a = 12.5

Simplifying
a = 12.5

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