3(6d+7)=21

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Solution for 3(6d+7)=21 equation: 


Simplifying
3(6d + 7) = 21

Reorder the terms:
3(7 + 6d) = 21
(7 * 3 + 6d * 3) = 21
(21 + 18d) = 21

Add '-21' to each side of the equation.
21 + -21 + 18d = 21 + -21

Combine like terms: 21 + -21 = 0
0 + 18d = 21 + -21
18d = 21 + -21

Combine like terms: 21 + -21 = 0
18d = 0

Solving
18d = 0

Solving for variable 'd'.

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

Divide each side by '18'.
d = 0

Simplifying
d = 0

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