Question

Given that
R
=
7
x
+
5
y

Find
y
when
x
=
9
and
R
=
35

Give your answer as an improper fraction in its simplest form.

Answer 1

Answer:

R=7x+5y,

x=9

R=35

Step-by-step explanation:

put the value of x and R in the equation

35=7×9+5y

35=63+5y

5y=35-63

5y=-28

y=-28/5

y=-5.6

Answer 2

Answer:

Step-by-step explanation: