-18-a=-25

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Solution for -18-a=-25 equation:


Simplifying
-18 + -1a = -25

Solving
-18 + -1a = -25

Solving for variable 'a'.

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

Add '18' to each side of the equation.
-18 + 18 + -1a = -25 + 18

Combine like terms: -18 + 18 = 0
0 + -1a = -25 + 18
-1a = -25 + 18

Combine like terms: -25 + 18 = -7
-1a = -7

Divide each side by '-1'.
a = 7

Simplifying
a = 7

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