d+3=7(d-3)

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


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

Reorder the terms:
3 + d = 7(d + -3)

Reorder the terms:
3 + d = 7(-3 + d)
3 + d = (-3 * 7 + d * 7)
3 + d = (-21 + 7d)

Solving
3 + d = -21 + 7d

Solving for variable 'd'.

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

Add '-7d' to each side of the equation.
3 + d + -7d = -21 + 7d + -7d

Combine like terms: d + -7d = -6d
3 + -6d = -21 + 7d + -7d

Combine like terms: 7d + -7d = 0
3 + -6d = -21 + 0
3 + -6d = -21

Add '-3' to each side of the equation.
3 + -3 + -6d = -21 + -3

Combine like terms: 3 + -3 = 0
0 + -6d = -21 + -3
-6d = -21 + -3

Combine like terms: -21 + -3 = -24
-6d = -24

Divide each side by '-6'.
d = 4

Simplifying
d = 4

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