Explicație pas cu pas:
[tex] {2}^{x} + {2}^{x} \times {2}^{1} = 4 \times 3 \\ {2}^{x} + {2}^{x} \times 2 = {2}^{2} \times 3 \\ {2}^{x} \times (1 + 2) = {2}^{2} \times 3 \\ {2}^{x} \times 3 = {2}^{2} \times 3 \\ {2}^{x} = {2}^{2} \\ x = 2[/tex]
