How would you do this math problem?

Question

explain how to do it also give the answer so i can do the rest on my own thanks....

0.9y - 0.7 = 4.2

Answer 1

0.9y-0.7=4.2

0.9y=4.2+0.7

you transfer the -0.7 to the right side..so it turns to be positive 0.7

then..0.9y=4.9

then..y=4.9/0.9

there fore ur answer is..y=5.44

Answer 2

the y equals 4.9 over 0.9

Answer 3

add .7 to both sides

then you have .9y=4.9

divide by .9

then you get 5.4444

or 49/9ths

the answers by adam and eddietheface are incorrect due to the fact that you cannot have a decimal in a fraction

Answer 4

0.9y-0.7=4.2

multiply the equation by 10

9y-7=42

9y-7+7=42+7

9y=49

y=49/9=5 4/9=5.44444444......5

Answer 5

0.9y-0.7=4.2

0.9y=4.9

y=4.9/.9

Answer 6

firstly, add 0.7 on both sides

then , divide both side by 0.9 .

answer = 4.9/ 0.9=5.444444.....