3-7d+2d=-2-2(1-d)

Solution for 3-7d+2d=-2-2(1-d) equation:

Simplifying
3 + -7d + 2d = -2 + -2(1 + -1d)

Combine like terms: -7d + 2d = -5d
3 + -5d = -2 + -2(1 + -1d)
3 + -5d = -2 + (1 * -2 + -1d * -2)
3 + -5d = -2 + (-2 + 2d)

Combine like terms: -2 + -2 = -4
3 + -5d = -4 + 2d

Solving
3 + -5d = -4 + 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 = -4 + 2d + -2d

Combine like terms: -5d + -2d = -7d
3 + -7d = -4 + 2d + -2d

Combine like terms: 2d + -2d = 0
3 + -7d = -4 + 0
3 + -7d = -4

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

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

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

Divide each side by '-7'.
d = 1

Simplifying
d = 1