Respuesta :

ItzTds

Answer:

[tex] \sf \: 2x + 9y [/tex]

Step-by-step explanation:

Given expression,

→ 3x + 2y - x + 7y

Now we have to,

→ Simplify the given expression.

Let's start to simplify,

→ 3x + 2y - x + 7y

→ 3x - x + 2y + 7y

→ (3 - 1)x + (2 + 7)y

→ 2x + 9y

Hence, the answer is 2x + 9y.