4*-1=0.4*-1-2y

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Solution for 4*-1=0.4*-1-2y equation: 


Simplifying
4 * -1 = 0.4 * -1 + -2y

Multiply 4 * -1
-4 = 0.4 * -1 + -2y

Multiply 0.4 * -1
-4 = -0.4 + -2y

Solving
-4 = -0.4 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-4 + 2y = -0.4 + -2y + 2y

Combine like terms: -2y + 2y = 0
-4 + 2y = -0.4 + 0
-4 + 2y = -0.4

Add '4' to each side of the equation.
-4 + 4 + 2y = -0.4 + 4

Combine like terms: -4 + 4 = 0
0 + 2y = -0.4 + 4
2y = -0.4 + 4

Combine like terms: -0.4 + 4 = 3.6
2y = 3.6

Divide each side by '2'.
y = 1.8

Simplifying
y = 1.8

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