-2a-2+9=3a-9

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Solution for -2a-2+9=3a-9 equation:


Simplifying
-2a + -2 + 9 = 3a + -9

Reorder the terms:
-2 + 9 + -2a = 3a + -9

Combine like terms: -2 + 9 = 7
7 + -2a = 3a + -9

Reorder the terms:
7 + -2a = -9 + 3a

Solving
7 + -2a = -9 + 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.
7 + -2a + -3a = -9 + 3a + -3a

Combine like terms: -2a + -3a = -5a
7 + -5a = -9 + 3a + -3a

Combine like terms: 3a + -3a = 0
7 + -5a = -9 + 0
7 + -5a = -9

Add '-7' to each side of the equation.
7 + -7 + -5a = -9 + -7

Combine like terms: 7 + -7 = 0
0 + -5a = -9 + -7
-5a = -9 + -7

Combine like terms: -9 + -7 = -16
-5a = -16

Divide each side by '-5'.
a = 3.2

Simplifying
a = 3.2

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