-a+20+7a=-4

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Solution for -a+20+7a=-4 equation:


Simplifying
-1a + 20 + 7a = -4

Reorder the terms:
20 + -1a + 7a = -4

Combine like terms: -1a + 7a = 6a
20 + 6a = -4

Solving
20 + 6a = -4

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + 6a = -4 + -20

Combine like terms: 20 + -20 = 0
0 + 6a = -4 + -20
6a = -4 + -20

Combine like terms: -4 + -20 = -24
6a = -24

Divide each side by '6'.
a = -4

Simplifying
a = -4

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