3 years ago

-7+9y=-19 4x-9y=10 pls help like rn fr

Mathematics

1 answer:

solniwko [45]3 years ago

8 0

Answer:

9y=-19+7

y=-19/9+7/9

4x-9(-19/9+7/9)=10

4x-9(-4/3)=10

multiply -9 by -4/3 to get 12

4x+12=10

4x=10-12

4x=-2

x=-1/2

if x=-1/2 then y

4(-1/2)-9y=10

-2-9y=10

-9y=12

y=-1/1/3

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