21a-42-2-6a=-71

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Solution for 21a-42-2-6a=-71 equation:


Simplifying
21a + -42 + -2 + -6a = -71

Reorder the terms:
-42 + -2 + 21a + -6a = -71

Combine like terms: -42 + -2 = -44
-44 + 21a + -6a = -71

Combine like terms: 21a + -6a = 15a
-44 + 15a = -71

Solving
-44 + 15a = -71

Solving for variable 'a'.

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

Add '44' to each side of the equation.
-44 + 44 + 15a = -71 + 44

Combine like terms: -44 + 44 = 0
0 + 15a = -71 + 44
15a = -71 + 44

Combine like terms: -71 + 44 = -27
15a = -27

Divide each side by '15'.
a = -1.8

Simplifying
a = -1.8

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