3+(-13)+(-15)=d

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Solution for 3+(-13)+(-15)=d equation:


Simplifying
3 + (-13) + (-15) = d
3 + -13 + (-15) = d
3 + -13 + -15 = d

Combine like terms: 3 + -13 = -10
-10 + -15 = d

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

Solving
-25 = 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.
-25 + -1d = d + -1d

Combine like terms: d + -1d = 0
-25 + -1d = 0

Add '25' to each side of the equation.
-25 + 25 + -1d = 0 + 25

Combine like terms: -25 + 25 = 0
0 + -1d = 0 + 25
-1d = 0 + 25

Combine like terms: 0 + 25 = 25
-1d = 25

Divide each side by '-1'.
d = -25

Simplifying
d = -25

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