-2(y plus 5) plus y?
5+y+2y? = 5+3y?
y = 5
3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8
-2y+y = -y
y=.50
2y + 1.
x = y+3 x+2y = 9 => x = 9-2y y+3 = 9-2y 2y+y = 9-3 3y = 6 y = 2 and x = 5
3x + 5 + x + 10 + 2y 4x + 2y + 15 |:2 2x + y + 7.5 2x + y + 7.5 is equivalent to the original.
The equation "x plus 2y equals 5" is: x + 2y = 5 2y = 5 - x y = 5/2 - 1/2x y = -1/2x + 5/2
-5
(2y - 5)(y - 2)
-2x=2y+5 +2x -2y -2y=2x+5 /-2 y=-1/1+2.5