78=15a-12

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Solution for 78=15a-12 equation:


Simplifying
78 = 15a + -12

Reorder the terms:
78 = -12 + 15a

Solving
78 = -12 + 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
78 + -15a = -12 + 15a + -15a

Combine like terms: 15a + -15a = 0
78 + -15a = -12 + 0
78 + -15a = -12

Add '-78' to each side of the equation.
78 + -78 + -15a = -12 + -78

Combine like terms: 78 + -78 = 0
0 + -15a = -12 + -78
-15a = -12 + -78

Combine like terms: -12 + -78 = -90
-15a = -90

Divide each side by '-15'.
a = 6

Simplifying
a = 6

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