15(2+d)=420

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Solution for 15(2+d)=420 equation: 


Simplifying
15(2 + d) = 420
(2 * 15 + d * 15) = 420
(30 + 15d) = 420

Solving
30 + 15d = 420

Solving for variable 'd'.

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

Add '-30' to each side of the equation.
30 + -30 + 15d = 420 + -30

Combine like terms: 30 + -30 = 0
0 + 15d = 420 + -30
15d = 420 + -30

Combine like terms: 420 + -30 = 390
15d = 390

Divide each side by '15'.
d = 26

Simplifying
d = 26

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