Question

Given that

R
=
4
x
+
6
y

Find
x
when
y
=
4
and
R
=
11

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

Answer 1

`-(13)/(4)`

Explanation:

r = 4x + 6y

11 = 4x + (6 x 4)

11 = 4x + 24

(im gonna flip it around because it looks better for me, you dont have to)

4x + 24 = 11 _(minus 24 from both sides)

4x = -13 _(divide both sides by 4)

x =
`-(13)/(4)`