Cerinta: Sa se determine x
Explicație pas cu pas:
x din y inseamna ca sa inmultim acele doua numere
din=inmultire
[tex]\displystyle\frac{x}{9} \times 360=20\\ \\ \frac{\not360\times x}{\not9} =20\\ \\ 40\times x=20\\\\ \dispalystyle x= \frac{20}{40} \\\\ \displystyles x=\frac{1}{2}[/tex]
[tex]\displaystyle\frac{x}{\not7} \times \not1477 = 1055\\\\ x\times 211=1055\\\\ x=\frac{1055}{211} \\\\ x=5[/tex]
[tex]\displaystyle\frac{x}{\not11} \times\not495033=9006\\ \\ 45003\times x=9006\\\\x=\frac{9006}{45003}\\\\ x=\frac{3002}{15001}[/tex]
[tex]\displaystyle\frac{x}{\not102} \times \not6120 = 180\\ \\ 60\times x=180\\ \\ x=\frac{180}{60} \\ \\ x=3[/tex]
