7=1+3d

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Solution for 7=1+3d equation:


Simplifying
7 = 1 + 3d

Solving
7 = 1 + 3d

Solving for variable 'd'.

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

Add '-3d' to each side of the equation.
7 + -3d = 1 + 3d + -3d

Combine like terms: 3d + -3d = 0
7 + -3d = 1 + 0
7 + -3d = 1

Add '-7' to each side of the equation.
7 + -7 + -3d = 1 + -7

Combine like terms: 7 + -7 = 0
0 + -3d = 1 + -7
-3d = 1 + -7

Combine like terms: 1 + -7 = -6
-3d = -6

Divide each side by '-3'.
d = 2

Simplifying
d = 2

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