Math, asked by abuzaidkhan, 10 months ago

a girl is 3 years older than her brother. in four more years, 3 time her age will be 4 times her brother's age find their present age​

Answers

Answered by varun0912
3

Step-by-step explanation:

x+3= y. ......1

(y+3)4 = (x+4)3

4y + 12= 3x+12

3x-4y = 0. 2

by one and two

3x-3y+9=0

3x-4y. =

y =9

x=12

Answered by anjirny123
1

Answer:

12

Step-by-step explanation:

x+3= y. ......1

(y+3)4 = (x+4)3

4y + 12= 3x+12

3x-4y = 0. 2

by one and two

3x-3y+9=0

3x-4y. =

y =9

x=12

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