2(-0.5)-y=-4

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Solution for 2(-0.5)-y=-4 equation: 


Simplifying
2(-0.5) + -1y = -4

Multiply 2 * -0.5
-1 + -1y = -4

Solving
-1 + -1y = -4

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 + -1y = -4 + 1

Combine like terms: -1 + 1 = 0
0 + -1y = -4 + 1
-1y = -4 + 1

Combine like terms: -4 + 1 = -3
-1y = -3

Divide each side by '-1'.
y = 3

Simplifying
y = 3

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