4 years ago

6.4x +2.8y =44 when x=3

1 answer:

8 0

1.6.4(3)+2.8y=44
2.44-6.4(3)=2.8y
3.divide into 2.8so-->44-64(3)/2.8=y so
44-19.2=24.8----- 24.8/2.8=8.857
y=8.857

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