which expression can be substituted for y in equation 2?

1 ⤊

which expression can be substituted for y in equation 2?

2/3x+2y=4

2007-04-15 11:26:45 · 4 answers · asked by lilmommalilt 1 in Science & Mathematics ➔ Mathematics

4 answers

2y = 4 - 2/3x
y = 2 - 1/3x

Substitute 2 - 1/3x for y.

2007-04-15 11:30:21 · answer #1 · answered by ecolink 7 · 1⤊ 0⤋

y = -(1/3)x + 2

2007-04-15 11:43:56 · answer #2 · answered by Kathleen K 7 · 0⤊ 0⤋

2y=4-2/3x
y=(4-2/3x)/2

*****y=2-1/3x******

so you've got an equation to subsitute for y. it would look like this now:
2/3x+2(2-1/3x)=4
2/3x+4-2/3x=4
the 2/3 + and - cancel eachother out and you've got 4=4

2007-04-15 11:38:53 · answer #3 · answered by thebrainwaver 2 · 0⤊ 0⤋

y= (4-2/3x)/2

2007-04-15 11:30:26 · answer #4 · answered by clevelandbrownsgirl2007 3 · 0⤊ 1⤋