85d+75=100d+30

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Solution for 85d+75=100d+30 equation:


Simplifying
85d + 75 = 100d + 30

Reorder the terms:
75 + 85d = 100d + 30

Reorder the terms:
75 + 85d = 30 + 100d

Solving
75 + 85d = 30 + 100d

Solving for variable 'd'.

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

Add '-100d' to each side of the equation.
75 + 85d + -100d = 30 + 100d + -100d

Combine like terms: 85d + -100d = -15d
75 + -15d = 30 + 100d + -100d

Combine like terms: 100d + -100d = 0
75 + -15d = 30 + 0
75 + -15d = 30

Add '-75' to each side of the equation.
75 + -75 + -15d = 30 + -75

Combine like terms: 75 + -75 = 0
0 + -15d = 30 + -75
-15d = 30 + -75

Combine like terms: 30 + -75 = -45
-15d = -45

Divide each side by '-15'.
d = 3

Simplifying
d = 3

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