3d+10=d+15

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Solution for 3d+10=d+15 equation:


Simplifying
3d + 10 = d + 15

Reorder the terms:
10 + 3d = d + 15

Reorder the terms:
10 + 3d = 15 + d

Solving
10 + 3d = 15 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
10 + 3d + -1d = 15 + d + -1d

Combine like terms: 3d + -1d = 2d
10 + 2d = 15 + d + -1d

Combine like terms: d + -1d = 0
10 + 2d = 15 + 0
10 + 2d = 15

Add '-10' to each side of the equation.
10 + -10 + 2d = 15 + -10

Combine like terms: 10 + -10 = 0
0 + 2d = 15 + -10
2d = 15 + -10

Combine like terms: 15 + -10 = 5
2d = 5

Divide each side by '2'.
d = 2.5

Simplifying
d = 2.5

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