d+3d+(3d+10)=135

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Solution for d+3d+(3d+10)=135 equation:


Simplifying
d + 3d + (3d + 10) = 135

Reorder the terms:
d + 3d + (10 + 3d) = 135

Remove parenthesis around (10 + 3d)
d + 3d + 10 + 3d = 135

Reorder the terms:
10 + d + 3d + 3d = 135

Combine like terms: d + 3d = 4d
10 + 4d + 3d = 135

Combine like terms: 4d + 3d = 7d
10 + 7d = 135

Solving
10 + 7d = 135

Solving for variable 'd'.

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

Add '-10' to each side of the equation.
10 + -10 + 7d = 135 + -10

Combine like terms: 10 + -10 = 0
0 + 7d = 135 + -10
7d = 135 + -10

Combine like terms: 135 + -10 = 125
7d = 125

Divide each side by '7'.
d = 17.85714286

Simplifying
d = 17.85714286

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