Question

3x+4y=28 & 8x+16y=100

Answer 1

Answer:

3x-8x=28 & 16y-4y=100

-5x=28 & 14y=100

x=28 & y=100

5 14

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Answer 2

Answer:

4(3x+4y=28) and 8x+ 16y =100

12x+16y=112 ,8x+16y=100

12x+16y=112

_+8x+16y =100

_____________

4x=12

____________

x= 12/4

x=3

put value of x in 8x+16y = 100

8x3+16y=100

24+16y=100

16y=100-24

16y=76

y=76/16

y=4.75