5d+3=2d+21

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Solution for 5d+3=2d+21 equation:


Simplifying
5d + 3 = 2d + 21

Reorder the terms:
3 + 5d = 2d + 21

Reorder the terms:
3 + 5d = 21 + 2d

Solving
3 + 5d = 21 + 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
3 + 5d + -2d = 21 + 2d + -2d

Combine like terms: 5d + -2d = 3d
3 + 3d = 21 + 2d + -2d

Combine like terms: 2d + -2d = 0
3 + 3d = 21 + 0
3 + 3d = 21

Add '-3' to each side of the equation.
3 + -3 + 3d = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 3d = 21 + -3
3d = 21 + -3

Combine like terms: 21 + -3 = 18
3d = 18

Divide each side by '3'.
d = 6

Simplifying
d = 6

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