8.7y-7.7y+3.5=-7.2+9.1

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Solution for 8.7y-7.7y+3.5=-7.2+9.1 equation: 


Simplifying
8.7y + -7.7y + 3.5 = -7.2 + 9.1

Reorder the terms:
3.5 + 8.7y + -7.7y = -7.2 + 9.1

Combine like terms: 8.7y + -7.7y = 1y
3.5 + 1y = -7.2 + 9.1

Combine like terms: -7.2 + 9.1 = 1.9
3.5 + 1y = 1.9

Solving
3.5 + 1y = 1.9

Solving for variable 'y'.

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

Add '-3.5' to each side of the equation.
3.5 + -3.5 + 1y = 1.9 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 1y = 1.9 + -3.5
1y = 1.9 + -3.5

Combine like terms: 1.9 + -3.5 = -1.6
1y = -1.6

Divide each side by '1'.
y = -1.6

Simplifying
y = -1.6

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