.4(-5+3d)=4

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Solution for .4(-5+3d)=4 equation: 


Simplifying
0.4(-5 + 3d) = 4
(-5 * 0.4 + 3d * 0.4) = 4
(-2 + 1.2d) = 4

Solving
-2 + 1.2d = 4

Solving for variable 'd'.

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

Add '2' to each side of the equation.
-2 + 2 + 1.2d = 4 + 2

Combine like terms: -2 + 2 = 0
0 + 1.2d = 4 + 2
1.2d = 4 + 2

Combine like terms: 4 + 2 = 6
1.2d = 6

Divide each side by '1.2'.
d = 5

Simplifying
d = 5

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