12a-84=10a-65

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Solution for 12a-84=10a-65 equation:


Simplifying
12a + -84 = 10a + -65

Reorder the terms:
-84 + 12a = 10a + -65

Reorder the terms:
-84 + 12a = -65 + 10a

Solving
-84 + 12a = -65 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
-84 + 12a + -10a = -65 + 10a + -10a

Combine like terms: 12a + -10a = 2a
-84 + 2a = -65 + 10a + -10a

Combine like terms: 10a + -10a = 0
-84 + 2a = -65 + 0
-84 + 2a = -65

Add '84' to each side of the equation.
-84 + 84 + 2a = -65 + 84

Combine like terms: -84 + 84 = 0
0 + 2a = -65 + 84
2a = -65 + 84

Combine like terms: -65 + 84 = 19
2a = 19

Divide each side by '2'.
a = 9.5

Simplifying
a = 9.5

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