3.9+2.03d=2.4(.42+d)

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Solution for 3.9+2.03d=2.4(.42+d) equation:


Simplifying
3.9 + 2.03d = 2.4(0.42 + d)
3.9 + 2.03d = (0.42 * 2.4 + d * 2.4)
3.9 + 2.03d = (1.008 + 2.4d)

Solving
3.9 + 2.03d = 1.008 + 2.4d

Solving for variable 'd'.

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

Add '-2.4d' to each side of the equation.
3.9 + 2.03d + -2.4d = 1.008 + 2.4d + -2.4d

Combine like terms: 2.03d + -2.4d = -0.37d
3.9 + -0.37d = 1.008 + 2.4d + -2.4d

Combine like terms: 2.4d + -2.4d = 0.0
3.9 + -0.37d = 1.008 + 0.0
3.9 + -0.37d = 1.008

Add '-3.9' to each side of the equation.
3.9 + -3.9 + -0.37d = 1.008 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + -0.37d = 1.008 + -3.9
-0.37d = 1.008 + -3.9

Combine like terms: 1.008 + -3.9 = -2.892
-0.37d = -2.892

Divide each side by '-0.37'.
d = 7.816216216

Simplifying
d = 7.816216216

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