3(7d-5)=4(4d+5)

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Solution for 3(7d-5)=4(4d+5) equation:


Simplifying
3(7d + -5) = 4(4d + 5)

Reorder the terms:
3(-5 + 7d) = 4(4d + 5)
(-5 * 3 + 7d * 3) = 4(4d + 5)
(-15 + 21d) = 4(4d + 5)

Reorder the terms:
-15 + 21d = 4(5 + 4d)
-15 + 21d = (5 * 4 + 4d * 4)
-15 + 21d = (20 + 16d)

Solving
-15 + 21d = 20 + 16d

Solving for variable 'd'.

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

Add '-16d' to each side of the equation.
-15 + 21d + -16d = 20 + 16d + -16d

Combine like terms: 21d + -16d = 5d
-15 + 5d = 20 + 16d + -16d

Combine like terms: 16d + -16d = 0
-15 + 5d = 20 + 0
-15 + 5d = 20

Add '15' to each side of the equation.
-15 + 15 + 5d = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 5d = 20 + 15
5d = 20 + 15

Combine like terms: 20 + 15 = 35
5d = 35

Divide each side by '5'.
d = 7

Simplifying
d = 7

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