78+y=390

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Solution for 78+y=390 equation: 


Simplifying
78 + y = 390

Solving
78 + y = 390

Solving for variable 'y'.

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

Add '-78' to each side of the equation.
78 + -78 + y = 390 + -78

Combine like terms: 78 + -78 = 0
0 + y = 390 + -78
y = 390 + -78

Combine like terms: 390 + -78 = 312
y = 312

Simplifying
y = 312

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