OpenStudy (anonymous):

What is the solution of the following system?

OpenStudy (anonymous):

OpenStudy (anonymous):

use elimination method to figure it out

OpenStudy (anonymous):

i dont know how to do that

OpenStudy (anonymous):

do yo know how to do that?

OpenStudy (anonymous):

no >.<

OpenStudy (anonymous):

sorry i was getting dinner

OpenStudy (anonymous):

@iforgot help?

OpenStudy (anonymous):

elimination -1 [ax - by = 1 ] ax + by = 1 -ax + by = -1 ax + by = 1 --------------- 0ax + 2by = 0 solve for one term first

OpenStudy (anonymous):

-2 [ax - by = 1 ] < multiply them 2 ax + by = 1 < with any number as long as ^ ^ |____ |________ one term a or b is elminiated = 0 so you can you solve the equation

OpenStudy (anonymous):

so do i times them both by 4 and -4?

OpenStudy (anonymous):

first of all how do you solve an equation like this 2 = x + 2

OpenStudy (anonymous):

uhhhh you minus 2 to both sides and x=0

OpenStudy (anonymous):

correct you solve for x it is in the form x = number

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

what would i have to multiply to eliminate one of the terms (the column)

OpenStudy (anonymous):

this is distributed _____________________ V V V -1 [ 2x - 2y = 2 ] 2x +2y = 1 ---- 0x --- 4 y = 1 solve for y y = 1/4 substitute what you got y = 1/4 2x + 2 (1/4) = 1 now you can solve

OpenStudy (anonymous):

Is this supposed to be the answer to the problem ?

OpenStudy (anonymous):

no it is an example

OpenStudy (anonymous):

ok...just checking

OpenStudy (anonymous):

I thought you wrote the problem down wrong...my bad...sorry iforgot

OpenStudy (anonymous):

I hope he knows about no solutions and infinite solutions

OpenStudy (anonymous):

because one of them will apply here