Question

Find two numbers such that the larger number added to three times the smaller number gives 7 and twice the larger number added to smaller number gives 9​

Answer 1

Answer:

let the larger no.be y and smaller no.be x

(y+3x=7)eq.1

(x+2y=9)eq.2

multiply the eq.1 with 2

so,the eq.are

2y+6x=14 eq.3

x+2y=9 eq.4

by changing the signs of eq.4

the eq.are now

2y+6x=14

-x-2y=-9

(subtract the eq.3 from eq.4)

5x=5

x=5/5=1

x=1

putting x=1 in eq.2

1+2y=9

2y=9-1

2y=8

y=8/2

y=4

the answers are

x=1

y=4

this method is done by eliminating the coefficient

hope it helps you ,mark as the brainiest plz

Step-by-step explanation: