Question

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) 3x - y = 7
2x + 4y = 0 solve it by subsitution method​

Answer 1

x=2

y=-1

Step-by-step explanation:

y=3x-7---->(1)

2x+(4×3x-7)=0

2x-28+12x=0

14x=0+28

x=28/14

x=2

y=3×2-7

y=-1