Question

tìm x, biết

a)-12/x+3/=-60

b)2(x-5)-3(x-4)=-6+15.(-3)

Ai nhanh mình sẽ like

 

Answer 1

a) 2 hoặc -8

b)khó lắm

Answer 2

b) 2(x-5)-3(x-4)=-6+15.(-3)

2(x-5)-3(x-4)=-6+(-45)

2(x-5)-3(x-4)=-51ban tu lam not nha

Answer 3

=2.(x-5)-3.(x-4)=-6+(-45)

=2.(x-5)-3.(x-4)=-51

=2x- 10-3x-12=-51

=2x-10-3x=-39

=2x-3x-10=-39

=2x-3x=-29

x(2-3)=-29

x.(-1)=-29 

=>x=29

kick cho mình nhé