3X = 15 + 5y does not have a single answer. The answer forms a line on the Cartesian plane.
In order to reach a single solution you must have two equations when there are two unknowns.
4x+7-3x = 15 4x-3x = 15-7 x = 8
-3x + 5 = 20 -3x = 15 x = -5
5x+y=-7 3x+y=15 8=D
no
(0,7)
3x + 5 = 20 Subtract '5' from both sides 3x = 15 Divide both sides by '3' x = 5 The answer!!!!!
3
x=7
23
x = -8
3x+12x = 15 15x = 15 x = 1
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.