7-10a=8-9a

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Solution for 7-10a=8-9a equation:


Simplifying
7 + -10a = 8 + -9a

Solving
7 + -10a = 8 + -9a

Solving for variable 'a'.

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

Add '9a' to each side of the equation.
7 + -10a + 9a = 8 + -9a + 9a

Combine like terms: -10a + 9a = -1a
7 + -1a = 8 + -9a + 9a

Combine like terms: -9a + 9a = 0
7 + -1a = 8 + 0
7 + -1a = 8

Add '-7' to each side of the equation.
7 + -7 + -1a = 8 + -7

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

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

Divide each side by '-1'.
a = -1

Simplifying
a = -1

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