Question

Solve the system of equations
Y=11-2x
4x-y=7


​

Answer 1

X= 1/29 and Y= - 9/29

Explanation:

Y=11-2x

Y= -7-4x

by using calculator mode 5 then 1 and write the equations it will appear

Answer 2

x=3

y=5

Explanation:

y=11-2x equation 1

4x-y=7 equaton 2

using equation 1 in equation 2 we have:

4x-(11-2x)=7

4x -11 +2x = 7

6x=7+11

6x= 18

x= 18/6

x=3

so we have

y=11-2(3)

y=11-6

y =5