Question

3(7-4x)=5
Ma poate ajuta cineva?

Answer 1

$3(7-4x)=5$

$7-4x=\frac{5}{3}$

$4x=7-\frac{5}{3}$

$4x=\frac{16}{3}$

$x=\frac{\frac{16}{3}}{4}=\frac{16}{12}=\frac{4}{3}$

Answer 2

3(7-4x )=5
21-12x =5
12x =21-5
12x =16
x =16/12 =4/3
verif  ;   21-12*4/3 =21-48/3 =21-16 =5