5(20-d)+10d=30

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Solution for 5(20-d)+10d=30 equation: 



5(20-d)+10d=30

We move all terms to the left:

5(20-d)+10d-(30)=0

We add all the numbers together, and all the variables

5(-1d+20)+10d-30=0

We add all the numbers together, and all the variables

10d+5(-1d+20)-30=0

We multiply parentheses

10d-5d+100-30=0

We add all the numbers together, and all the variables

5d+70=0

We move all terms containing d to the left, all other terms to the right

5d=-70

d=-70/5

d=-14

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