-4y+7.9=139.1

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Solution for -4y+7.9=139.1 equation:


Simplifying
-4y + 7.9 = 139.1

Reorder the terms:
7.9 + -4y = 139.1

Solving
7.9 + -4y = 139.1

Solving for variable 'y'.

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

Add '-7.9' to each side of the equation.
7.9 + -7.9 + -4y = 139.1 + -7.9

Combine like terms: 7.9 + -7.9 = 0.0
0.0 + -4y = 139.1 + -7.9
-4y = 139.1 + -7.9

Combine like terms: 139.1 + -7.9 = 131.2
-4y = 131.2

Divide each side by '-4'.
y = -32.8

Simplifying
y = -32.8

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