3d+4=7

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Solution for 3d+4=7 equation: 


Simplifying
3d + 4 = 7

Reorder the terms:
4 + 3d = 7

Solving
4 + 3d = 7

Solving for variable 'd'.

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

Add '-4' to each side of the equation.
4 + -4 + 3d = 7 + -4

Combine like terms: 4 + -4 = 0
0 + 3d = 7 + -4
3d = 7 + -4

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

Divide each side by '3'.
d = 1

Simplifying
d = 1

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