.04(4c-40)=-.8(c-4)

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Solution for .04(4c-40)=-.8(c-4) equation:


Simplifying
0.04(4c + -40) = -0.8(c + -4)

Reorder the terms:
0.04(-40 + 4c) = -0.8(c + -4)
(-40 * 0.04 + 4c * 0.04) = -0.8(c + -4)
(-1.6 + 0.16c) = -0.8(c + -4)

Reorder the terms:
-1.6 + 0.16c = -0.8(-4 + c)
-1.6 + 0.16c = (-4 * -0.8 + c * -0.8)
-1.6 + 0.16c = (3.2 + -0.8c)

Solving
-1.6 + 0.16c = 3.2 + -0.8c

Solving for variable 'c'.

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

Add '0.8c' to each side of the equation.
-1.6 + 0.16c + 0.8c = 3.2 + -0.8c + 0.8c

Combine like terms: 0.16c + 0.8c = 0.96c
-1.6 + 0.96c = 3.2 + -0.8c + 0.8c

Combine like terms: -0.8c + 0.8c = 0.0
-1.6 + 0.96c = 3.2 + 0.0
-1.6 + 0.96c = 3.2

Add '1.6' to each side of the equation.
-1.6 + 1.6 + 0.96c = 3.2 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
0.0 + 0.96c = 3.2 + 1.6
0.96c = 3.2 + 1.6

Combine like terms: 3.2 + 1.6 = 4.8
0.96c = 4.8

Divide each side by '0.96'.
c = 5

Simplifying
c = 5

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