Question

ex 14 va rog dau coroana

Answer 1

Răspuns:

Explicație pas cu pas:

m(2x-4)=-x-1

2mx-4m=-x-1

2mx+x=4m-1

x(2m+1)=4m-1

$x=\frac{4m-1}{2m+1}$

4m-1 | 2m+1     |×2

4m-1 | 4m-1

4m-1   | 4m+2

4m-1  |4m-1

facem diferenta

4m-1 | 3

4m-1={1,2,3}

4m={2,3,4}

m=1