3.1y+1=2.5y-3.5

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Solution for 3.1y+1=2.5y-3.5 equation: 


Simplifying
3.1y + 1 = 2.5y + -3.5

Reorder the terms:
1 + 3.1y = 2.5y + -3.5

Reorder the terms:
1 + 3.1y = -3.5 + 2.5y

Solving
1 + 3.1y = -3.5 + 2.5y

Solving for variable 'y'.

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

Add '-2.5y' to each side of the equation.
1 + 3.1y + -2.5y = -3.5 + 2.5y + -2.5y

Combine like terms: 3.1y + -2.5y = 0.6y
1 + 0.6y = -3.5 + 2.5y + -2.5y

Combine like terms: 2.5y + -2.5y = 0.0
1 + 0.6y = -3.5 + 0.0
1 + 0.6y = -3.5

Add '-1' to each side of the equation.
1 + -1 + 0.6y = -3.5 + -1

Combine like terms: 1 + -1 = 0
0 + 0.6y = -3.5 + -1
0.6y = -3.5 + -1

Combine like terms: -3.5 + -1 = -4.5
0.6y = -4.5

Divide each side by '0.6'.
y = -7.5

Simplifying
y = -7.5

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