1/5x + 3/5y = 12/5
-3x + y = 10
7x + y =20
thank you
2007-01-29 09:31:02 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
first isolate the y monomial on one side (the first one would be 3/5y=-1/5x=12/5) the 2nd two will be done
for #1, then multiply each side by 5/3, that way y will be isolated
2007-01-29 09:44:08 · answer #1 · answered by Caty 3 · 0⤊ 0⤋
I'll do the third one....
7x + y = 20 equation
-7x -7x subtract 7x from both sides
y = -7x + 20 slope intercept form
basically you just need to solve for y in order to put the equation in slope intercept form
2007-01-29 17:41:47 · answer #2 · answered by elanor 2 · 0⤊ 0⤋
If you solve for the variable "y" by isolating it, you'll get the
y = mx +b equation. These are easy, you should be able to do them if you have the idea of isolating for the variable in your head.
How do you get Y alone?
2007-01-29 17:47:24 · answer #3 · answered by Kipper to the CUP! 6 · 0⤊ 0⤋
You are in standard form. Ax+By=C
m(the slope) is -A/B. b(the y intercept) is C/B
2007-01-29 17:44:49 · answer #4 · answered by Nate L 2 · 0⤊ 0⤋
Check your notes
2007-01-29 17:50:57 · answer #5 · answered by twilightxxlove 2 · 0⤊ 0⤋