Question

5x + 2y = 20, when x = 0.3

Answer 1

X=0.3

5(0.3)+2y=20

1.5+2y=20

2y=20-1.5

2y=19.5

y=19.5/2

y=9.7

hope it will help you

Answer 2

5*0.3+2y= 20

1.5+2y=20

2y = 20 - 1.5

hence 2y = 18.5

or, y = 18.5/2= 9.25