Question

Tìm X biết :
X : 0,25 + X x 11 = 39
 

Answer 1

X : 0,25 + X x 11 = 39

x.4+x.11=39

=>x.15=39

=>x=39:15

=>x=2,6

Answer 2

\(=>x\times4+x\times11=39\\ =>x\times\left(11+4\right)=39\\ =>x\times15=39\\ =>x=39:15\\ =>x=\dfrac{39}{15}\)