Question

solve the system of equations using substitution. show your work. write your solution as an ordered pair

Answer 1

x= 2y

2x-5y=-4

Put the first equation in the second equation ( replace x= 2y)

2(2y)-5y = - 4

Solve for y:

4y-5y = -4

-y= -4

Multiply both sides by -1

y=4

Replace y=4 in the first equation, and solve for x

x=2(4)

x=8

Solution = (8,4)