0.3(7d+6)+2.2=16.6

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Solution for 0.3(7d+6)+2.2=16.6 equation: 


Simplifying
0.3(7d + 6) + 2.2 = 16.6

Reorder the terms:
0.3(6 + 7d) + 2.2 = 16.6
(6 * 0.3 + 7d * 0.3) + 2.2 = 16.6
(1.8 + 2.1d) + 2.2 = 16.6

Reorder the terms:
1.8 + 2.2 + 2.1d = 16.6

Combine like terms: 1.8 + 2.2 = 4
4 + 2.1d = 16.6

Solving
4 + 2.1d = 16.6

Solving for variable 'd'.

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

Add '-4' to each side of the equation.
4 + -4 + 2.1d = 16.6 + -4

Combine like terms: 4 + -4 = 0
0 + 2.1d = 16.6 + -4
2.1d = 16.6 + -4

Combine like terms: 16.6 + -4 = 12.6
2.1d = 12.6

Divide each side by '2.1'.
d = 6

Simplifying
d = 6

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