-4a+7=-7-20

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


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

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

Combine like terms: -7 + -20 = -27
7 + -4a = -27

Solving
7 + -4a = -27

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + -4a = -27 + -7

Combine like terms: 7 + -7 = 0
0 + -4a = -27 + -7
-4a = -27 + -7

Combine like terms: -27 + -7 = -34
-4a = -34

Divide each side by '-4'.
a = 8.5

Simplifying
a = 8.5

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