Question

解方程十八分之x+4-六分之一(x-5)=三分之x+3-二分之一,去分母时方程两边同乘得( )

Answer 1

解方程(x+4)/18-(x-5)/6=(x+3)/3-1/2,去分母时,方程两边同乘以18,得

(x+4)-3(x-5)=6(x+3)-9

x+4-3x+15=6x+18-9

-2x+19=6x+9

8x=10

x=5/4