25. Determinati numarul x stiind ca: 4,2× (x + 1,5) = 8,4.​

Salutare!

4,2×(x+1,5)=8,4

(x+1,5)=8,4:4,2

x+1,5=2

x=2-1,5

x=0,5

Explicație pas cu pas:

Buna !!

[tex]4.2 \times (x + 1.5) = 8.4 \\ x + 1.5 = 8.4 \div 4.2 \\ x + 1.5 = 2 \\ x = 2 - 1.5 \\ \red{x = 0.5} [/tex]

**VERIFICAREA:

[tex]4.2 \times (0.5 + 1.5) = 8.4 \\ 4.2 \times 2 = 8.4 \\ \blue{8.4 = 8.4} [/tex]

Succes !!;)

✿❀AndreeaBrainly123❀✿