9+4=3d+4d

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Solution for 9+4=3d+4d equation:


Simplifying
9 + 4 = 3d + 4d

Combine like terms: 9 + 4 = 13
13 = 3d + 4d

Combine like terms: 3d + 4d = 7d
13 = 7d

Solving
13 = 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.
13 + -7d = 7d + -7d

Combine like terms: 7d + -7d = 0
13 + -7d = 0

Add '-13' to each side of the equation.
13 + -13 + -7d = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -7d = 0 + -13
-7d = 0 + -13

Combine like terms: 0 + -13 = -13
-7d = -13

Divide each side by '-7'.
d = 1.857142857

Simplifying
d = 1.857142857

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