Hey, Silver, let me see if I can help you out. I'm going to assume that your task is not only to get y on its own side of equality sign, but to solve for y as well.
-3x+2y=2
Okay so our first task, here, is to get the x value away from the y and across the equality sign. To do this, we add 3x to both sides of the equation (remember that, on the y side, we're trying to bring x to zero).
-3x+3x+2y=2+3x 0x+2y=2+3x
2y=2+3x
We still need to rid of the lefthand 2, in order to achieve a lonely y, and so we divide both sides of the equation by that value: 2.
2y/2=2/2+3x/2
The 2's on the lefthand side cancel out to leave y, and we simplify the righthand fractions.
y=1+3x/2
x-4y=8
Same thing here, but because x is positive, we are going to subtract it. Recall that a lone variable is considered to have a numerical value of 1.
“Rise like Lions after slumber
In unvanquishable number.
Shake your chains to earth like dew
Which in sleep had fallen on you—
Ye are many—they are few.” — Mary Shelly
Gender:
Points: 1040
Reviews: 41