Question

tìm x :

87-(321-x):5=75

Answer 1

87-(321-x):5=75

=>87-(321-x) =75 x 5

=> 87-(321-x)= 375

=> 321-x=87-375

=> 321-x=.............

=> x=321- .........

tíc mình nha

Answer 2

87-(321-x)=75x5

87-321-xx=375

     321-xx=375-87

     321-xx=287

           x  = 321-287

           x=34