84=y+78

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Solution for 84=y+78 equation:


Simplifying
84 = y + 78

Reorder the terms:
84 = 78 + y

Solving
84 = 78 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
84 + -1y = 78 + y + -1y

Combine like terms: y + -1y = 0
84 + -1y = 78 + 0
84 + -1y = 78

Add '-84' to each side of the equation.
84 + -84 + -1y = 78 + -84

Combine like terms: 84 + -84 = 0
0 + -1y = 78 + -84
-1y = 78 + -84

Combine like terms: 78 + -84 = -6
-1y = -6

Divide each side by '-1'.
y = 6

Simplifying
y = 6

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