1+(-3.5y)+y=-1

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Solution for 1+(-3.5y)+y=-1 equation: 


Simplifying
1 + (-3.5y) + y = -1

Combine like terms: (-3.5y) + y = -2.5y
1 + -2.5y = -1

Solving
1 + -2.5y = -1

Solving for variable 'y'.

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

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

Combine like terms: 1 + -1 = 0
0 + -2.5y = -1 + -1
-2.5y = -1 + -1

Combine like terms: -1 + -1 = -2
-2.5y = -2

Divide each side by '-2.5'.
y = 0.8

Simplifying
y = 0.8

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