(3(3)+1)+12d+((10.5)-5)+15=34

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Solution for (3(3)+1)+12d+((10.5)-5)+15=34 equation: 


Simplifying
(3(3) + 1) + 12d + ((10.5) + -5) + 15 = 34

Multiply 3 * 3
(9 + 1) + 12d + ((10.5) + -5) + 15 = 34

Combine like terms: 9 + 1 = 10
(10) + 12d + ((10.5) + -5) + 15 = 34
10 + 12d + ((10.5) + -5) + 15 = 34
10 + 12d + (10.5 + -5) + 15 = 34

Combine like terms: 10.5 + -5 = 5.5
10 + 12d + (5.5) + 15 = 34
10 + 12d + 5.5 + 15 = 34

Reorder the terms:
10 + 5.5 + 15 + 12d = 34

Combine like terms: 10 + 5.5 = 15.5
15.5 + 15 + 12d = 34

Combine like terms: 15.5 + 15 = 30.5
30.5 + 12d = 34

Solving
30.5 + 12d = 34

Solving for variable 'd'.

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

Add '-30.5' to each side of the equation.
30.5 + -30.5 + 12d = 34 + -30.5

Combine like terms: 30.5 + -30.5 = 0.0
0.0 + 12d = 34 + -30.5
12d = 34 + -30.5

Combine like terms: 34 + -30.5 = 3.5
12d = 3.5

Divide each side by '12'.
d = 0.2916666667

Simplifying
d = 0.2916666667

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