42y-45-81y=-3-7-2y

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Solution for 42y-45-81y=-3-7-2y equation:


Simplifying
42y + -45 + -81y = -3 + -7 + -2y

Reorder the terms:
-45 + 42y + -81y = -3 + -7 + -2y

Combine like terms: 42y + -81y = -39y
-45 + -39y = -3 + -7 + -2y

Combine like terms: -3 + -7 = -10
-45 + -39y = -10 + -2y

Solving
-45 + -39y = -10 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-45 + -39y + 2y = -10 + -2y + 2y

Combine like terms: -39y + 2y = -37y
-45 + -37y = -10 + -2y + 2y

Combine like terms: -2y + 2y = 0
-45 + -37y = -10 + 0
-45 + -37y = -10

Add '45' to each side of the equation.
-45 + 45 + -37y = -10 + 45

Combine like terms: -45 + 45 = 0
0 + -37y = -10 + 45
-37y = -10 + 45

Combine like terms: -10 + 45 = 35
-37y = 35

Divide each side by '-37'.
y = -0.9459459459

Simplifying
y = -0.9459459459

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