Răspuns :
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❀✿