72=-18a

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Solution for 72=-18a equation:


Simplifying
72 = -18a

Solving
72 = -18a

Solving for variable 'a'.

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

Add '18a' to each side of the equation.
72 + 18a = -18a + 18a

Combine like terms: -18a + 18a = 0
72 + 18a = 0

Add '-72' to each side of the equation.
72 + -72 + 18a = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 18a = 0 + -72
18a = 0 + -72

Combine like terms: 0 + -72 = -72
18a = -72

Divide each side by '18'.
a = -4

Simplifying
a = -4

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