4.2y-4.8=84.6+3y

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Solution for 4.2y-4.8=84.6+3y equation: 


Simplifying
4.2y + -4.8 = 84.6 + 3y

Reorder the terms:
-4.8 + 4.2y = 84.6 + 3y

Solving
-4.8 + 4.2y = 84.6 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-4.8 + 4.2y + -3y = 84.6 + 3y + -3y

Combine like terms: 4.2y + -3y = 1.2y
-4.8 + 1.2y = 84.6 + 3y + -3y

Combine like terms: 3y + -3y = 0
-4.8 + 1.2y = 84.6 + 0
-4.8 + 1.2y = 84.6

Add '4.8' to each side of the equation.
-4.8 + 4.8 + 1.2y = 84.6 + 4.8

Combine like terms: -4.8 + 4.8 = 0.0
0.0 + 1.2y = 84.6 + 4.8
1.2y = 84.6 + 4.8

Combine like terms: 84.6 + 4.8 = 89.4
1.2y = 89.4

Divide each side by '1.2'.
y = 74.5

Simplifying
y = 74.5

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