Question

solve the system of equations.
x-4y=5
x=3y-2
(__,__)

Answer 1

wait is x-4 and y=5 seperate

Answer 2

x-4y=5<-eqn1
x=3y-2<- eqn 2
rearrange the eqn 2

Answer 3

x - 3y = -2

Answer 4

Once you rearrange equation 2, subtract the all the terms.

Answer 5

oh got it

Answer 6

So you're left with -y = 7 or y = -7

Answer 7

adamk explain how to use the elimination

Answer 8

so its (7, -7) ?

Answer 9

Then, substitute -7 in for "y" in one of the equations to get "x". Then, you have your ordered pair, (x, y).

Answer 10

Wait

Answer 11

ok

Answer 12

http://static.k12.com/bank_packages/files/media/mathml_8c85eee488c0d22e6533e4c1e7991d4f76867dd8_1.gif

Answer 13

sorry thats another question i need help on

Answer 14

The ordered pair is (-23, -7). Go look up systems of equations on khan academy. It's difficult to explain here.

Answer 15

k thanks