2+-2.5y=1

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Solution for 2+-2.5y=1 equation: 


Simplifying
2 + -2.5y = 1

Solving
2 + -2.5y = 1

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + -2.5y = 1 + -2

Combine like terms: 2 + -2 = 0
0 + -2.5y = 1 + -2
-2.5y = 1 + -2

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

Divide each side by '-2.5'.
y = 0.4

Simplifying
y = 0.4

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