3(5+d)=36

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Solution for 3(5+d)=36 equation: 


Simplifying
3(5 + d) = 36
(5 * 3 + d * 3) = 36
(15 + 3d) = 36

Solving
15 + 3d = 36

Solving for variable 'd'.

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

Add '-15' to each side of the equation.
15 + -15 + 3d = 36 + -15

Combine like terms: 15 + -15 = 0
0 + 3d = 36 + -15
3d = 36 + -15

Combine like terms: 36 + -15 = 21
3d = 21

Divide each side by '3'.
d = 7

Simplifying
d = 7

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