Question

simultaneous linear equations
x+y=48
x+4=5÷2 (y+4)​

Answer 1

x+y=48 .......... (1)

x+4=5/2 ×( y +4)

x+4=5y+20/2

2x+8=5y+20

2x-5y=12........ .. (2)

(1).... x=48-y

substitute x in (2 )

2 (48-y)-5y=12

96-2y-5y =12

96-7y=12

96-12=7y

84=7y

7y=84

y=84/7

y=12.

Substitute y in x

x= 48-12

x=36