18d+4d-6(d+3)=30

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Solution for 18d+4d-6(d+3)=30 equation:


Simplifying
18d + 4d + -6(d + 3) = 30

Reorder the terms:
18d + 4d + -6(3 + d) = 30
18d + 4d + (3 * -6 + d * -6) = 30
18d + 4d + (-18 + -6d) = 30

Reorder the terms:
-18 + 18d + 4d + -6d = 30

Combine like terms: 18d + 4d = 22d
-18 + 22d + -6d = 30

Combine like terms: 22d + -6d = 16d
-18 + 16d = 30

Solving
-18 + 16d = 30

Solving for variable 'd'.

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

Add '18' to each side of the equation.
-18 + 18 + 16d = 30 + 18

Combine like terms: -18 + 18 = 0
0 + 16d = 30 + 18
16d = 30 + 18

Combine like terms: 30 + 18 = 48
16d = 48

Divide each side by '16'.
d = 3

Simplifying
d = 3

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