18=4A-(-2)

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Solution for 18=4A-(-2) equation:


Simplifying
18 = 4A + -1(-2)

Multiply -1 * -2
18 = 4A + 2

Reorder the terms:
18 = 2 + 4A

Solving
18 = 2 + 4A

Solving for variable 'A'.

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

Add '-4A' to each side of the equation.
18 + -4A = 2 + 4A + -4A

Combine like terms: 4A + -4A = 0
18 + -4A = 2 + 0
18 + -4A = 2

Add '-18' to each side of the equation.
18 + -18 + -4A = 2 + -18

Combine like terms: 18 + -18 = 0
0 + -4A = 2 + -18
-4A = 2 + -18

Combine like terms: 2 + -18 = -16
-4A = -16

Divide each side by '-4'.
A = 4

Simplifying
A = 4

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