2.5=7.7+y

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Solution for 2.5=7.7+y equation: 


Simplifying
2.5 = 7.7 + y

Solving
2.5 = 7.7 + 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.
2.5 + -1y = 7.7 + y + -1y

Combine like terms: y + -1y = 0
2.5 + -1y = 7.7 + 0
2.5 + -1y = 7.7

Add '-2.5' to each side of the equation.
2.5 + -2.5 + -1y = 7.7 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -1y = 7.7 + -2.5
-1y = 7.7 + -2.5

Combine like terms: 7.7 + -2.5 = 5.2
-1y = 5.2

Divide each side by '-1'.
y = -5.2

Simplifying
y = -5.2

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