9x + 9 = 135 9x = 126 x = 14
8-9x = 143-44x 44x-9x = 143-8 35x = 135 x = 135/35 = 22/7 or 3.'857142' recurring decimals
24
6x2-9x-6 is equal to 66.
System.dat, User.dat, System.da0, User.da0
216
an equation
99.
It is equal to -18x^2 +9x
9x + 4 = 6 9x = 6 -4 9x = 2 x = 2/9
Expressed algebraically, this is equal to 9x.
9x + 8 = 89 9x = 81 x = 9