Question

Linear equations with one variable​

Answer 1

please give a clarity and full question...

Answer 2

Answer:

Let the present age of ram and Rahim be 4x and 5x respectively

4 years back their ages will be

(4x-4) and (5x-4)

According to the question,

(4x-4)/5x-4=3/4

=x=4

Present age of ram=4*4=16 years

Present age of Rahim=4*5=20 years

Step-by-step explanation:

let l be the length of rectangle and b be the breadth of rectangle

=>l:b=7:4

=>l/b=7/4

=>l=7b/4

given length is doubled and the breadth is increased by 6

=>2l/(b+6)=2/1

=>l/(b+6)=1

substitute l=7b/4

=>7b/4=b+6

=>7b=4b+24

=>3b=24

=>b=8

substitute b =8 in l=7b/4

=>l=7(8)/4

=>l=14

so the length and breadth is 14 and 8