Question

Solve for three variables

Answer 1

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Answer 2

subtract the first equation from the second, gives \[\large f+g=-2\]

Answer 3

do i have to subtract the first from the second

Answer 4

i would then double the third equation, get \[4d+10f+10g=-8\] then subtract the second equation form that one

Answer 5

\[5f+6g=-12\]

Answer 6

so now you have \[f+g=-2\\
5f+6g=-12\] solve for \(f,g\)

Answer 7

I can use -5 right

Answer 8

so g = -2?

Answer 9

yes , \(g=-2, f=0\)

Answer 10

oh right, because f + g = -2

Answer 11

yes

Answer 12

now you can solve for d in either any of the three equations

Answer 13

4d = 12 so d = 3?

Answer 14

that is what i get yes

Answer 15

sorry my internet died

Answer 16

I medaled you, ty