7.9-0.7-y=0.2

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Solution for 7.9-0.7-y=0.2 equation: 


Simplifying
7.9 + -0.7 + -1y = 0.2

Combine like terms: 7.9 + -0.7 = 7.2
7.2 + -1y = 0.2

Solving
7.2 + -1y = 0.2

Solving for variable 'y'.

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

Add '-7.2' to each side of the equation.
7.2 + -7.2 + -1y = 0.2 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + -1y = 0.2 + -7.2
-1y = 0.2 + -7.2

Combine like terms: 0.2 + -7.2 = -7
-1y = -7

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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