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17 + d = -7

add 7 to both sides

17 + 7 + d = -7 + 7

24 + d = 0

subtract 24 from both sides

d = -24

Q: What is 17 plus d equals -7 How do you do it?

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-6

If: d+7 = 5 Then: d = -2 by subtracting 7 from both sides

c = 6 and d = 7

4

Commutativity.

Related questions

d=17

the answer is a

-6

If: d+7 = 5 Then: d = -2 by subtracting 7 from both sides

c = 6 and d = 7

4

Commutativity.

That's the equation.

Doc, Happy, Grumpy, Sleepy, Bashful, Sneezy and Dopey equal[s] the 7 dwarves.

15d + 7 = 7d + 15 is an equation in one variable, d.

2d + 7 = 9 2d = 2 d = 1

5x+y=-7 3x+y=15 8=D