81-8a=7a+6

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Solution for 81-8a=7a+6 equation:


Simplifying
81 + -8a = 7a + 6

Reorder the terms:
81 + -8a = 6 + 7a

Solving
81 + -8a = 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.
81 + -8a + -7a = 6 + 7a + -7a

Combine like terms: -8a + -7a = -15a
81 + -15a = 6 + 7a + -7a

Combine like terms: 7a + -7a = 0
81 + -15a = 6 + 0
81 + -15a = 6

Add '-81' to each side of the equation.
81 + -81 + -15a = 6 + -81

Combine like terms: 81 + -81 = 0
0 + -15a = 6 + -81
-15a = 6 + -81

Combine like terms: 6 + -81 = -75
-15a = -75

Divide each side by '-15'.
a = 5

Simplifying
a = 5

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