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I am Lyosha [343]
4 years ago
14

−11=3d+6d−2 sove for D

Mathematics
2 answers:
Katen [24]4 years ago
5 0

Answer:

d=-1

Step-by-step explanation:

1st Switch sides: 3d+6d-2=-11

2nd Add similar elements: 3d+6d=9d

            9d-2=-11

3rd Add 2 to both sides: 9d-2+2=-11+2

4th Simplify: 9d=-9

5th Divide both sides by 9: 9d÷9=-9÷9

6th Simplify d=-1

ra1l [238]4 years ago
3 0

Answer: -1

Step-by-step explanation: 3d+6d−2=−11

3d+6d−2=−11

Step 1: Simplify both sides of the equation.

3d+6d−2=−11

3d+6d+−2=−11

(3d+6d)+(−2)=−11(Combine Like Terms)

9d+−2=−11

9d−2=−11

Step 2: Add 2 to both sides.

9d−2+2=−11+2

9d=−9

Step 3: Divide both sides by 9.

9d/9 -9/9d

d=-1 sorry if its hard to understand

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