-2a-7a+3=66

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Solution for -2a-7a+3=66 equation:


Simplifying
-2a + -7a + 3 = 66

Reorder the terms:
3 + -2a + -7a = 66

Combine like terms: -2a + -7a = -9a
3 + -9a = 66

Solving
3 + -9a = 66

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + -9a = 66 + -3

Combine like terms: 3 + -3 = 0
0 + -9a = 66 + -3
-9a = 66 + -3

Combine like terms: 66 + -3 = 63
-9a = 63

Divide each side by '-9'.
a = -7

Simplifying
a = -7

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