Question

Solve the system of equations.
-9y+4x-20=0
-7y+16x-80=0
X=
Y=

Answer 1

Answer:

x=5,y=0

Step-by-step explanation:

4x-9y=20.........(1)

16x-7y=80..........(2)

multiply eq (1)by 4

16x-36y=80...........(3)

substracting eq(2)from(3)

16x-7y=80

-

16x-36y=80

=

0- 29 y=0

y=0

put in eq (1)

-y(0)+4x=20

4x=20

x=5, y=0