7y-12=78

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Solution for 7y-12=78 equation: 


Simplifying
7y + -12 = 78

Reorder the terms:
-12 + 7y = 78

Solving
-12 + 7y = 78

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 = 78 + 12

Combine like terms: -12 + 12 = 0
0 + 7y = 78 + 12
7y = 78 + 12

Combine like terms: 78 + 12 = 90
7y = 90

Divide each side by '7'.
y = 12.85714286

Simplifying
y = 12.85714286

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