-18=45-a

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Solution for -18=45-a equation:


Simplifying
-18 = 45 + -1a

Solving
-18 = 45 + -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 + a = 45 + -1a + a

Combine like terms: -1a + a = 0
-18 + a = 45 + 0
-18 + a = 45

Add '18' to each side of the equation.
-18 + 18 + a = 45 + 18

Combine like terms: -18 + 18 = 0
0 + a = 45 + 18
a = 45 + 18

Combine like terms: 45 + 18 = 63
a = 63

Simplifying
a = 63

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