3 years ago

7x+2y=-17 Y=5x What is x,y

Mathematics

2 answers:

Drupady [299]3 years ago

8 0

7x+2(5x)=-17
7x+10x=-17
17x=-17
x=-1
y=5x=5(-1)=-5

allsm [11]3 years ago

6 0

7x+2(5x)=-17
7x+10x=-17
17x=-17
so x=-1,
keep x in7x+2y=-17
7(-1)+2y=-17
-7+2y=-17
-10=2y
y=-5

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