17-3d+8-4d=-9+13

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Solution for 17-3d+8-4d=-9+13 equation:


Simplifying
17 + -3d + 8 + -4d = -9 + 13

Reorder the terms:
17 + 8 + -3d + -4d = -9 + 13

Combine like terms: 17 + 8 = 25
25 + -3d + -4d = -9 + 13

Combine like terms: -3d + -4d = -7d
25 + -7d = -9 + 13

Combine like terms: -9 + 13 = 4
25 + -7d = 4

Solving
25 + -7d = 4

Solving for variable 'd'.

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

Add '-25' to each side of the equation.
25 + -25 + -7d = 4 + -25

Combine like terms: 25 + -25 = 0
0 + -7d = 4 + -25
-7d = 4 + -25

Combine like terms: 4 + -25 = -21
-7d = -21

Divide each side by '-7'.
d = 3

Simplifying
d = 3

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