2a-8+-9=-4

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Solution for 2a-8+-9=-4 equation:


Simplifying
2a + -8 + -9 = -4

Reorder the terms:
-8 + -9 + 2a = -4

Combine like terms: -8 + -9 = -17
-17 + 2a = -4

Solving
-17 + 2a = -4

Solving for variable 'a'.

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

Add '17' to each side of the equation.
-17 + 17 + 2a = -4 + 17

Combine like terms: -17 + 17 = 0
0 + 2a = -4 + 17
2a = -4 + 17

Combine like terms: -4 + 17 = 13
2a = 13

Divide each side by '2'.
a = 6.5

Simplifying
a = 6.5

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