Question

1.8+3.5y+0.9+9=16.2 PLEASE HELP!!

Answer 1

Solution:

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

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

$\frac{3.5y}{3.5} = \frac{4.5}{3.5}$

So

$y= \frac{4.5}{3.5}$

which means

$y = 1.28$

Hope it helps!