2y+5y=10 7y=10 y=10/7
-2x - 2y = -122x + 2y = 122y = 12 - 2xy = 6 - x
4y = 2y + 40 4y - 2y = 2y -2y +40 2y = 40 y = 20 check 4(20) = 2(20) +40 80 = 80
y = 5
2Y + 10 = 28 subtract 10 from both sides 2Y + 10 - 10 = 28 - 10 2Y = 18 divide both sides by 2 Y = 9 -------- check 2(9) + 10 = 28 18 + 10 = 28 28 = 28 checks
For y - 2y - 3y equals 0, y equals 0.
2y = 4 (divide both sides by 2 to solve) y = 2
2y = 15 y = 15/2 y = 7.5
You need more information to solve for x and y. One answer is x=3 and y=1.
get it to y= -2y = 1 - 2x y = x - 0.5
If as a straight line equation: 5x+2y = 20 then y = -2.5x+10 whereas -2.5 is the slope and 10 is the y intercept
3x-2y=6 -2y=-3x+6 y=1.5x-3
-13
x=10 y=4
2y - 9x = 14 2y = 14 + 9x y = (14 + 9x) / 2
If: 2y-10 = 8 Then: y = 9
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2