Respuesta :

UserIndonesia

Answer:

4

Step-by-step explanation:

[tex] \sf \frac{7 + 2x}{3} = 5[/tex]

[tex] \sf = 7 + 2x = (5 \times 3)[/tex]

[tex] \sf = 7 + 2x = 15[/tex]

[tex] \sf = 2x = 15 - 7[/tex]

[tex] \sf = 2x = 8[/tex]

[tex] \sf = \: \: \: x = 8 \div 2 \\ \sf x = 4[/tex]

Anonimity

Step-by-step explanation:

[tex]\begin{aligned}\frac{7+2x}{3}&=5\\7+2x&=5\times 3\\7+2x&=15\\2x&=15-7\\2x&=8\\x&=\frac{8}{2}\\x&=\boxed{4}\end{aligned}[/tex]