7a-8=3a+7

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Solution for 7a-8=3a+7 equation:


Simplifying
7a + -8 = 3a + 7

Reorder the terms:
-8 + 7a = 3a + 7

Reorder the terms:
-8 + 7a = 7 + 3a

Solving
-8 + 7a = 7 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-8 + 7a + -3a = 7 + 3a + -3a

Combine like terms: 7a + -3a = 4a
-8 + 4a = 7 + 3a + -3a

Combine like terms: 3a + -3a = 0
-8 + 4a = 7 + 0
-8 + 4a = 7

Add '8' to each side of the equation.
-8 + 8 + 4a = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 4a = 7 + 8
4a = 7 + 8

Combine like terms: 7 + 8 = 15
4a = 15

Divide each side by '4'.
a = 3.75

Simplifying
a = 3.75

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