9a+18=-42-a

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Solution for 9a+18=-42-a equation:


Simplifying
9a + 18 = -42 + -1a

Reorder the terms:
18 + 9a = -42 + -1a

Solving
18 + 9a = -42 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
18 + 9a + a = -42 + -1a + a

Combine like terms: 9a + a = 10a
18 + 10a = -42 + -1a + a

Combine like terms: -1a + a = 0
18 + 10a = -42 + 0
18 + 10a = -42

Add '-18' to each side of the equation.
18 + -18 + 10a = -42 + -18

Combine like terms: 18 + -18 = 0
0 + 10a = -42 + -18
10a = -42 + -18

Combine like terms: -42 + -18 = -60
10a = -60

Divide each side by '10'.
a = -6

Simplifying
a = -6

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