4=a-18

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Solution for 4=a-18 equation:


Simplifying
4 = a + -18

Reorder the terms:
4 = -18 + a

Solving
4 = -18 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
4 + -1a = -18 + a + -1a

Combine like terms: a + -1a = 0
4 + -1a = -18 + 0
4 + -1a = -18

Add '-4' to each side of the equation.
4 + -4 + -1a = -18 + -4

Combine like terms: 4 + -4 = 0
0 + -1a = -18 + -4
-1a = -18 + -4

Combine like terms: -18 + -4 = -22
-1a = -22

Divide each side by '-1'.
a = 22

Simplifying
a = 22

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