2.8=(10-04D)-(0.6)(9)

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Solution for 2.8=(10-04D)-(0.6)(9) equation: 


Simplifying
2.8 = (10 + -4D) + -1(0.6)(9)

Remove parenthesis around (10 + -4D)
2.8 = 10 + -4D + -1(0.6)(9)

Multiply -1 * 0.6
2.8 = 10 + -4D + -0.6 * 9

Multiply -0.6 * 9
2.8 = 10 + -4D + -5.4

Reorder the terms:
2.8 = 10 + -5.4 + -4D

Combine like terms: 10 + -5.4 = 4.6
2.8 = 4.6 + -4D

Solving
2.8 = 4.6 + -4D

Solving for variable 'D'.

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

Add '4D' to each side of the equation.
2.8 + 4D = 4.6 + -4D + 4D

Combine like terms: -4D + 4D = 0
2.8 + 4D = 4.6 + 0
2.8 + 4D = 4.6

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 4D = 4.6 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 4D = 4.6 + -2.8
4D = 4.6 + -2.8

Combine like terms: 4.6 + -2.8 = 1.8
4D = 1.8

Divide each side by '4'.
D = 0.45

Simplifying
D = 0.45

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