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Lerok [7]
3 years ago
7

3x+y=7 6x+4y=22 can somebody help me solve this problem?

Mathematics
1 answer:
swat323 years ago
5 0
Hey there!

\boxed{x=1;y=4}

3x + y = 7 \\ \\ 
    6x + 4y = 22

y = -3x + 7 \\ \\ Plug \ this \ in \ for \ variable \ (y) \ in \ equation \ \\ \\ 

       6x + 4*(-3x+7) = 22 \\ \\ 
       -6x = -6 \\ \\ 6x=6 \ x+1 \\ \\ x=1 \ y=-3x+7 \\ \\ \boxed{y=-3(1)+7=4} \\ \\ \boxed{\boxed{x=1;y=4}}

I hope this helps you!
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