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3 years ago

10

What's 4x+2y=10 X-y=13

1 answer:

vampirchik [111]3 years ago

4 0

X=y+13 then put in above

4(y+13)+2y=10
4y+52+2y=10

6y=-42

divide by 6
y=-7

Now put in X=y+13
x=-7+13
x=6

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