3d+d-7=

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Solution for 3d+d-7= equation: 


Simplifying
3d + d + -7 = 0

Reorder the terms:
-7 + 3d + d = 0

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

Solving
-7 + 4d = 0

Solving for variable 'd'.

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

Add '7' to each side of the equation.
-7 + 7 + 4d = 0 + 7

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

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

Divide each side by '4'.
d = 1.75

Simplifying
d = 1.75

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