10d+25=15d+20

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Solution for 10d+25=15d+20 equation:


Simplifying
10d + 25 = 15d + 20

Reorder the terms:
25 + 10d = 15d + 20

Reorder the terms:
25 + 10d = 20 + 15d

Solving
25 + 10d = 20 + 15d

Solving for variable 'd'.

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

Add '-15d' to each side of the equation.
25 + 10d + -15d = 20 + 15d + -15d

Combine like terms: 10d + -15d = -5d
25 + -5d = 20 + 15d + -15d

Combine like terms: 15d + -15d = 0
25 + -5d = 20 + 0
25 + -5d = 20

Add '-25' to each side of the equation.
25 + -25 + -5d = 20 + -25

Combine like terms: 25 + -25 = 0
0 + -5d = 20 + -25
-5d = 20 + -25

Combine like terms: 20 + -25 = -5
-5d = -5

Divide each side by '-5'.
d = 1

Simplifying
d = 1

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