Question

Help me. The topic is Maths, please.

Answer 1

x =
`(7)/(3)`

Explanation:

`(x)/(4)` =
`(7)/(12)` ( cross- multiply )

12x = 28 ( divide both sides by 12 )

x =
`(28)/(12)` =
`(7)/(3)` ← in simplest form

Answer 2

7

3

Explanation:

First Solution

X=7

4= 12

Making X Subject of the formula

we have,

X= 7×4 = 28 = 14 = 7

12 12 6 3

OR

You cross multiply

X multiplies 12= 12X

7 multiplies 4= 28

you now have 12X=28

divinding both sides by 12,

12 cancels 12 and leave X