Question

1.8+3.5y+0.9+9=16.2

PLEASE HELP!!

Answer 1

`1.8 + 3.5y + 0.9 + 9 = 16.2`

subtracting 0.9 and 9 from both side

`1.8 + 3.5y + 0.9 + 9 - 0.9 - 9 = 16.2 - 0.9 - 9`

it will become

`1.8 + 3.5y = 6.3`

subtracting 1.8 from both side

`1.8 + 3.5y - 1.8 = 6.3 -1.8`

it will become

`3.5y = 4.5`

now dividing both side by 3.5

`(3.5y)/(3.5) =  (4.5)/(3.5)`

So

`y= (4.5)/(3.5)`

which means

`y = 1.28`

Hope it helps!