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mjr632Best ResponseYou've already chosen the best response.1
Do you understand how to substitute?
 one year ago

mjr632Best ResponseYou've already chosen the best response.1
Okay, firstly, you want one equation as either Y or X by itself.
 one year ago

mjr632Best ResponseYou've already chosen the best response.1
If you do that part, i'll then explain the next step.
 one year ago

lovelycharmBest ResponseYou've already chosen the best response.0
okay wat the next step
 one year ago

mjr632Best ResponseYou've already chosen the best response.1
write the equation you've got for your isolated variable in here.
 one year ago

lovelycharmBest ResponseYou've already chosen the best response.0
dw:1360887641308:dw is that right how i solve for y
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
 7y +  7y is not zero and 4x + x is 5x
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
You need a variable to cross out when you add down. Try multiplying one of the equations by a certain number so that one variable crosses out when you add down.
 one year ago

lovelycharmBest ResponseYou've already chosen the best response.0
could u show me the step please @Rachel98
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Okay, here is an example problem I'll draw it.
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888023089:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Now see how none of the variables cross off? So I'm going to try multiplying the first equation by  1 and see what happens.
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888146491:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Now see if you add straight down a variable crosses off when you add down.  y and y can also be put as  1y and 1y. Look at the numbers  1 + 1 = 0, so that crosses off.
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888346035:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Now all we have to do is divide both sides by  1, so undo the multiplication
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888489391:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
So we have our x value, now what about y? What we do is we plug in the x value (substitute 8 for x) in one of the original equations. In this case the bottom equation is easier to do this.
 one year ago

lovelycharmBest ResponseYou've already chosen the best response.0
could u help me with my problem cuz i dont understand ur problem
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888601809:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
See, in my problem how I multiplied one equation by  1? Try doing that with either one of your equations and then add down.
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Remember, a negative * a negative is a positive.
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
dw:1360888933281:dw
 one year ago

Rachel98Best ResponseYou've already chosen the best response.0
Did you get it? Give it a try. I'll check your answer and if you make a mistake I'll work through it for you.
 one year ago
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