18=-20a

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Solution for 18=-20a equation:


Simplifying
18 = -20a

Solving
18 = -20a

Solving for variable 'a'.

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

Add '20a' to each side of the equation.
18 + 20a = -20a + 20a

Combine like terms: -20a + 20a = 0
18 + 20a = 0

Add '-18' to each side of the equation.
18 + -18 + 20a = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 20a = 0 + -18
20a = 0 + -18

Combine like terms: 0 + -18 = -18
20a = -18

Divide each side by '20'.
a = -0.9

Simplifying
a = -0.9

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