SOLUTION: I need to helpmy daughter with proportions she's at a summer program. She needs to solve in Ax+By=C no fractions #1 3y+9x-18=0 #2 6y-2x=8 #3 y=9x+12 #1 I thinks

Algebra ->  Proportions  -> Lessons -> SOLUTION: I need to helpmy daughter with proportions she's at a summer program. She needs to solve in Ax+By=C no fractions #1 3y+9x-18=0 #2 6y-2x=8 #3 y=9x+12 #1 I thinks       Log On


   

Question 473315: I need to helpmy daughter with proportions she's at a summer program. She needs to solve in Ax+By=C no fractions
#1 3y+9x-18=0
#2 6y-2x=8
#3 y=9x+12

#1 I thinks is y=3x+6 she said no it's not in Ax+By=C is it -3x+y=6
Thank you please tell me how to solve so I can explain it to her.

Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Ax%2BBy=C
#1 3y%2B9x-18=0 we have to write the term with x on the first place (9x) with y on the secone place (3y) and the term without x or y after =, then we will have Ax%2BBy=C
9x%2B3y=18divide by 3
3x%2By=6
.
#2 6y-2x=8
-2x%2B6y=8 divide by -2
x-3y=-4
.
#3 y=9x%2B12
-9x%2By=12