Question

Solve the system of equations x = –6y + 2 and 1/2x - y = 1. What is the y-coordinate of the solution?

A. -2/3

B. 0

C. -1/4

D. 1/4

Answer 1

plug in x = –6y + 2 in 1/2x - y = 1
what u get ?

Answer 2

1/2 (-6y+2) -y =1

Answer 3

Is this correct?

Answer 4

good! yes, correct :)
now multiply (1/2) to each terms inside
1/2 * -6y =...?
1/2* 2 =... ?

Answer 5

-3y + 1 -y =1

Answer 6

Is this correct?

Answer 7

correct! go on :)

Answer 8

-4y = 0

Answer 9

y equals zero?

Answer 10

good work! y=0 is correct :)

Answer 11

if and when you need 'x' , you can plug in y=0 in any of the equation,
x= -6*0+2
x=2 :)

Answer 12

Thanks a lot!!! :)

Answer 13

welcome ^_^