12-7y=-18

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Solution for 12-7y=-18 equation: 


Simplifying
12 + -7y = -18

Solving
12 + -7y = -18

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -7y = -18 + -12

Combine like terms: 12 + -12 = 0
0 + -7y = -18 + -12
-7y = -18 + -12

Combine like terms: -18 + -12 = -30
-7y = -30

Divide each side by '-7'.
y = 4.285714286

Simplifying
y = 4.285714286

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