Question

3 (x-1)-(x-3)+5 (x-2)=18 ??????

Answer 1

3 ( x-1 ) - ( x - 3 ) + 5 ( x - 2 ) = 18

3x - 3 - x + 3 + 5x - 10 = 18

3x - x + 5x  =   18 + 10 - 3 + 3
 
       7x =  28
   
         x =  28
              --------
                  7

         x =  4

        

Answer 2

3(x-1)-(x-3)+5(x-2)=18
3x-3-x+3+5x-10=18
5x+3x-x-3+3-10=18
7x=18+10
7x=28
x=28÷7
x= 4