Question

[6.03] What is the value of the y variable in the solution to the following system of equations?
5x + 3y = 7
3x - 5y = -23

Answer 1

do u know what the x-value is

Answer 2

no i dont and i really need help i have an half hour to turn this in

Answer 3

y=1/3(7-5x)

Answer 4

multiply the tope equation by(3/5) then subtract bottom from top to cancel out x then use that to solve for y and then plug y value back into one of the equations to solve for x know what I mean?

Answer 5

top**

Answer 6

no

Answer 7

so you would get
3x + (9/5)y = (21/5)
-3x - 5y = -23
(34/5)y = (136/5)
y = 136/34
y = 4
3x - 5(4) = -23
x = -3/3
x = -1

Answer 8

Do you see what I did?