2.5-y=-4

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Solution for 2.5-y=-4 equation: 


Simplifying
2.5 + -1y = -4

Solving
2.5 + -1y = -4

Solving for variable 'y'.

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

Add '-2.5' to each side of the equation.
2.5 + -2.5 + -1y = -4 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -1y = -4 + -2.5
-1y = -4 + -2.5

Combine like terms: -4 + -2.5 = -6.5
-1y = -6.5

Divide each side by '-1'.
y = 6.5

Simplifying
y = 6.5

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