7=1+d

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Solution for 7=1+d equation:


Simplifying
7 = 1 + d

Solving
7 = 1 + d

Solving for variable 'd'.

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

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

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

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

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

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

Divide each side by '-1'.
d = 6

Simplifying
d = 6

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