-a+4a-9=8a+8

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Solution for -a+4a-9=8a+8 equation:


Simplifying
-1a + 4a + -9 = 8a + 8

Reorder the terms:
-9 + -1a + 4a = 8a + 8

Combine like terms: -1a + 4a = 3a
-9 + 3a = 8a + 8

Reorder the terms:
-9 + 3a = 8 + 8a

Solving
-9 + 3a = 8 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-9 + 3a + -8a = 8 + 8a + -8a

Combine like terms: 3a + -8a = -5a
-9 + -5a = 8 + 8a + -8a

Combine like terms: 8a + -8a = 0
-9 + -5a = 8 + 0
-9 + -5a = 8

Add '9' to each side of the equation.
-9 + 9 + -5a = 8 + 9

Combine like terms: -9 + 9 = 0
0 + -5a = 8 + 9
-5a = 8 + 9

Combine like terms: 8 + 9 = 17
-5a = 17

Divide each side by '-5'.
a = -3.4

Simplifying
a = -3.4

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