-20=6(5a+7)

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Solution for -20=6(5a+7) equation:


Simplifying
-20 = 6(5a + 7)

Reorder the terms:
-20 = 6(7 + 5a)
-20 = (7 * 6 + 5a * 6)
-20 = (42 + 30a)

Solving
-20 = 42 + 30a

Solving for variable 'a'.

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

Add '-30a' to each side of the equation.
-20 + -30a = 42 + 30a + -30a

Combine like terms: 30a + -30a = 0
-20 + -30a = 42 + 0
-20 + -30a = 42

Add '20' to each side of the equation.
-20 + 20 + -30a = 42 + 20

Combine like terms: -20 + 20 = 0
0 + -30a = 42 + 20
-30a = 42 + 20

Combine like terms: 42 + 20 = 62
-30a = 62

Divide each side by '-30'.
a = -2.066666667

Simplifying
a = -2.066666667

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