21x + 6x = 2626 13x - 7x = 48 24x - x- x= 220 77x + 35x = 68
26x = 2626 6x = 48 22x = 220 112x = 68
x= 101 x= 48/6 x=10 x= 0.6071429
x=8
25x + 5x + x = 720 44x-8x + 6 = 40 12x + 8x -12 = 28
31x = 720 36x = 34 20x = 40
x = 23.225806 x= 0.944444 x =2
17x - 5x - 2x = 1000 9x +x = 18 = 118 10x - x - x +6 = 54
10 x = 1000 10x = 100 8x = 48
x = 100 x = 10 x = 6