7y-2.1=-27.3+4.2y

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Solution for 7y-2.1=-27.3+4.2y equation: 


Simplifying
7y + -2.1 = -27.3 + 4.2y

Reorder the terms:
-2.1 + 7y = -27.3 + 4.2y

Solving
-2.1 + 7y = -27.3 + 4.2y

Solving for variable 'y'.

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

Add '-4.2y' to each side of the equation.
-2.1 + 7y + -4.2y = -27.3 + 4.2y + -4.2y

Combine like terms: 7y + -4.2y = 2.8y
-2.1 + 2.8y = -27.3 + 4.2y + -4.2y

Combine like terms: 4.2y + -4.2y = 0.0
-2.1 + 2.8y = -27.3 + 0.0
-2.1 + 2.8y = -27.3

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 2.8y = -27.3 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 2.8y = -27.3 + 2.1
2.8y = -27.3 + 2.1

Combine like terms: -27.3 + 2.1 = -25.2
2.8y = -25.2

Divide each side by '2.8'.
y = -9

Simplifying
y = -9

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