9(5+2d)=81

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Solution for 9(5+2d)=81 equation: 


Simplifying
9(5 + 2d) = 81
(5 * 9 + 2d * 9) = 81
(45 + 18d) = 81

Solving
45 + 18d = 81

Solving for variable 'd'.

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

Add '-45' to each side of the equation.
45 + -45 + 18d = 81 + -45

Combine like terms: 45 + -45 = 0
0 + 18d = 81 + -45
18d = 81 + -45

Combine like terms: 81 + -45 = 36
18d = 36

Divide each side by '18'.
d = 2

Simplifying
d = 2

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