7a+18=-12-a-30-4a

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Solution for 7a+18=-12-a-30-4a equation:


Simplifying
7a + 18 = -12 + -1a + -30 + -4a

Reorder the terms:
18 + 7a = -12 + -1a + -30 + -4a

Reorder the terms:
18 + 7a = -12 + -30 + -1a + -4a

Combine like terms: -12 + -30 = -42
18 + 7a = -42 + -1a + -4a

Combine like terms: -1a + -4a = -5a
18 + 7a = -42 + -5a

Solving
18 + 7a = -42 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
18 + 7a + 5a = -42 + -5a + 5a

Combine like terms: 7a + 5a = 12a
18 + 12a = -42 + -5a + 5a

Combine like terms: -5a + 5a = 0
18 + 12a = -42 + 0
18 + 12a = -42

Add '-18' to each side of the equation.
18 + -18 + 12a = -42 + -18

Combine like terms: 18 + -18 = 0
0 + 12a = -42 + -18
12a = -42 + -18

Combine like terms: -42 + -18 = -60
12a = -60

Divide each side by '12'.
a = -5

Simplifying
a = -5

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