X is 6
-2x = -4x + 24 -2x + 4x = 24 2x = 24 x = 24/2 x = 12
8x-1=23-4x 12x=24 x=2
-2x=-4x*24 x=12
4x = 72.divide both sides by 4x = 18
-12 (?)
2x/3 = 8 + 4x2x = 24 + 12x-24 = 10x-2.4 = x
-3
4x+8y=-24
2X - 3Y = -2 4X + Y = 24 -2(2X - 3Y = - 2) 4X + Y = 24 - 4X + 6Y = 4 4X + Y = 24 ------------------+ 7Y = 28 Y = 4 ------- insert back into one of the equations ( 4X + Y = 24 will do ) 4X +(4) = 24 4X = 20 X =5 -------- check 2(5) - 3(4) = -2 10 - 12 = -2 -2 = -2 checks I can see by inspection that the other equation checks also
2y = 4x + 4y = 2x + 2
x = 5