-7(3a)+17+6a=81

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Solution for -7(3a)+17+6a=81 equation:


Simplifying
-7(3a) + 17 + 6a = 81

Remove parenthesis around (3a)
-7 * 3a + 17 + 6a = 81

Multiply -7 * 3
-21a + 17 + 6a = 81

Reorder the terms:
17 + -21a + 6a = 81

Combine like terms: -21a + 6a = -15a
17 + -15a = 81

Solving
17 + -15a = 81

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + -15a = 81 + -17

Combine like terms: 17 + -17 = 0
0 + -15a = 81 + -17
-15a = 81 + -17

Combine like terms: 81 + -17 = 64
-15a = 64

Divide each side by '-15'.
a = -4.266666667

Simplifying
a = -4.266666667

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