8-a-9=7a-6

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Solution for 8-a-9=7a-6 equation:


Simplifying
8 + -1a + -9 = 7a + -6

Reorder the terms:
8 + -9 + -1a = 7a + -6

Combine like terms: 8 + -9 = -1
-1 + -1a = 7a + -6

Reorder the terms:
-1 + -1a = -6 + 7a

Solving
-1 + -1a = -6 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-1 + -1a + -7a = -6 + 7a + -7a

Combine like terms: -1a + -7a = -8a
-1 + -8a = -6 + 7a + -7a

Combine like terms: 7a + -7a = 0
-1 + -8a = -6 + 0
-1 + -8a = -6

Add '1' to each side of the equation.
-1 + 1 + -8a = -6 + 1

Combine like terms: -1 + 1 = 0
0 + -8a = -6 + 1
-8a = -6 + 1

Combine like terms: -6 + 1 = -5
-8a = -5

Divide each side by '-8'.
a = 0.625

Simplifying
a = 0.625

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