3(d-2)+7=39.70

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Solution for 3(d-2)+7=39.70 equation: 


Simplifying
3(d + -2) + 7 = 39.70

Reorder the terms:
3(-2 + d) + 7 = 39.70
(-2 * 3 + d * 3) + 7 = 39.70
(-6 + 3d) + 7 = 39.70

Reorder the terms:
-6 + 7 + 3d = 39.70

Combine like terms: -6 + 7 = 1
1 + 3d = 39.70

Solving
1 + 3d = 39.70

Solving for variable 'd'.

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

Add '-1' to each side of the equation.
1 + -1 + 3d = 39.70 + -1

Combine like terms: 1 + -1 = 0
0 + 3d = 39.70 + -1
3d = 39.70 + -1

Combine like terms: 39.70 + -1 = 38.7
3d = 38.7

Divide each side by '3'.
d = 12.9

Simplifying
d = 12.9

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