4d+3(d-3)=18

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


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

Reorder the terms:
4d + 3(-3 + d) = 18
4d + (-3 * 3 + d * 3) = 18
4d + (-9 + 3d) = 18

Reorder the terms:
-9 + 4d + 3d = 18

Combine like terms: 4d + 3d = 7d
-9 + 7d = 18

Solving
-9 + 7d = 18

Solving for variable 'd'.

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

Add '9' to each side of the equation.
-9 + 9 + 7d = 18 + 9

Combine like terms: -9 + 9 = 0
0 + 7d = 18 + 9
7d = 18 + 9

Combine like terms: 18 + 9 = 27
7d = 27

Divide each side by '7'.
d = 3.857142857

Simplifying
d = 3.857142857

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