5.1=y+7.8

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Solution for 5.1=y+7.8 equation:


Simplifying
5.1 = y + 7.8

Reorder the terms:
5.1 = 7.8 + y

Solving
5.1 = 7.8 + 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.
5.1 + -1y = 7.8 + y + -1y

Combine like terms: y + -1y = 0
5.1 + -1y = 7.8 + 0
5.1 + -1y = 7.8

Add '-5.1' to each side of the equation.
5.1 + -5.1 + -1y = 7.8 + -5.1

Combine like terms: 5.1 + -5.1 = 0.0
0.0 + -1y = 7.8 + -5.1
-1y = 7.8 + -5.1

Combine like terms: 7.8 + -5.1 = 2.7
-1y = 2.7

Divide each side by '-1'.
y = -2.7

Simplifying
y = -2.7

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