5-4a-8=7+a

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Solution for 5-4a-8=7+a equation:


Simplifying
5 + -4a + -8 = 7 + a

Reorder the terms:
5 + -8 + -4a = 7 + a

Combine like terms: 5 + -8 = -3
-3 + -4a = 7 + a

Solving
-3 + -4a = 7 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-3 + -4a + -1a = 7 + a + -1a

Combine like terms: -4a + -1a = -5a
-3 + -5a = 7 + a + -1a

Combine like terms: a + -1a = 0
-3 + -5a = 7 + 0
-3 + -5a = 7

Add '3' to each side of the equation.
-3 + 3 + -5a = 7 + 3

Combine like terms: -3 + 3 = 0
0 + -5a = 7 + 3
-5a = 7 + 3

Combine like terms: 7 + 3 = 10
-5a = 10

Divide each side by '-5'.
a = -2

Simplifying
a = -2

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