4-3=0.4-2y

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Solution for 4-3=0.4-2y equation: 


Simplifying
4 + -3 = 0.4 + -2y

Combine like terms: 4 + -3 = 1
1 = 0.4 + -2y

Solving
1 = 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.
1 + 2y = 0.4 + -2y + 2y

Combine like terms: -2y + 2y = 0
1 + 2y = 0.4 + 0
1 + 2y = 0.4

Add '-1' to each side of the equation.
1 + -1 + 2y = 0.4 + -1

Combine like terms: 1 + -1 = 0
0 + 2y = 0.4 + -1
2y = 0.4 + -1

Combine like terms: 0.4 + -1 = -0.6
2y = -0.6

Divide each side by '2'.
y = -0.3

Simplifying
y = -0.3

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