2006-11-19 09:21:30 · 11 answers · asked by i_heart_jake_ryan118 1 in Education & Reference ➔ Homework Help
-2y+3=7y-42
-2y+3-3=7y-42-3
-2y=7y-45
-2y-7y=7y-7y-45
-9y=-45
-9y/-9=-45/-9
y=5
2006-11-19 09:26:49 · answer #1 · answered by hockey craze99 4 · 0⤊ 0⤋
Y = 5
2006-11-19 17:32:35 · answer #2 · answered by brain_boy 3 · 0⤊ 0⤋
5
2006-11-19 17:24:58 · answer #3 · answered by hollyrenee21 2 · 1⤊ 0⤋
- 2y+3=7y-42
Combine Like Terms.
Add 2y to 7y.
3=9y-42
Add 42 to 3.
45=9y
Divide 9y by both sides.
y=5
2006-11-19 17:31:00 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Rewriting the equations, you have -7y + (-2y)= -42 + (-3)=
-9y= -45, thus mulitiplying both sides of the equation by (-1), ypou have 9y=45, or y=5 (ans.)
2006-11-19 17:27:01 · answer #5 · answered by WC 7 · 0⤊ 0⤋
First, you have to add/subtract like terms. First, we shall do the variables. Since -2y is negative, you will add it to itself to cancel it out, and add -2y to 7y. You get this:
3 = 9y - 42
Then you get 9y by itself, so you add 42 to -42 to cancel it out, and add 42 to 3. You get this:
45 = 9y
Then you divide 45 and 9y by 9 and you get this:
y=5
Hope I helped!
2006-11-19 17:30:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋
move like terms to one side
-2y - 7y = -42 - 3
-9y = -45
y = 5
2006-11-19 17:29:39 · answer #7 · answered by candym 1 · 0⤊ 0⤋
-2y+3=7y-42 add 2y to each side
3=9y-42 add 42 to each side
45=9y divide each side by 9
5=y
2006-11-19 17:27:36 · answer #8 · answered by Anonymous · 0⤊ 0⤋
First add 42 to both sides.
-2y +45=7y
Then add 2y to both sides.
45=9y
Lastly divide both sides by 9.
5=y
2006-11-19 17:26:03 · answer #9 · answered by aaylasecura 2 · 0⤊ 0⤋
-2y+3=7y-42
=>-2y-7y=-42-3=-45
=>-9y=-45
=>y=-45/-9=5ans
2006-11-19 17:48:50 · answer #10 · answered by alpha 7 · 0⤊ 0⤋