78=15y-2y

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Solution for 78=15y-2y equation:


Simplifying
78 = 15y + -2y

Combine like terms: 15y + -2y = 13y
78 = 13y

Solving
78 = 13y

Solving for variable 'y'.

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

Add '-13y' to each side of the equation.
78 + -13y = 13y + -13y

Combine like terms: 13y + -13y = 0
78 + -13y = 0

Add '-78' to each side of the equation.
78 + -78 + -13y = 0 + -78

Combine like terms: 78 + -78 = 0
0 + -13y = 0 + -78
-13y = 0 + -78

Combine like terms: 0 + -78 = -78
-13y = -78

Divide each side by '-13'.
y = 6

Simplifying
y = 6

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