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Firdt of all , 'x times 3' is algebraically written as '3x' Hence 3x = 54 Divide both sides by '3' x = 54/ 3 = 18
9x2 + 3x / 3x equals (3x + 1).9x2 + 3x divided by x is 9x + 3 , and then divided by 3 yields the 3x +1.
18
3x/(5-x)/3=4 3x/(5-x)=4X3 3x=12(5-x) 3x=60-12x 3x+12x=60 x=4
3