Question

Solve the following pair of linear equations
7x + 3y = 27
2x + 5y = 16

Answer 1

Answer:

multiply the first equation by 5 and the second by 3

and then subtract so you'll get the value of x then find the value of y by substituting the value of x in one of the equa8

Answer 2

Answer:

y=2

x=3

Step-by-step explanation:

7x=27-3y

x=27-3y/7

2x+5y=16

2x=16-5y

2x=2[27-3y/7]

16-5y=2[27-3y/7]

16-5y/2=27-3y/7

cross multiply

[16-5y]7=[27-3y]2

112-35y=54-6y

112-54=35y-6y

58=29y

y=58/29

y=2

7x+3[2]=27

7x=27-6

7x=21

x=3

y=2

x=3