Respuesta :
Answer:
add +y to both sides
Step-by-step explanation:
10 - y = 2y + 3
+y +y
^it will cancel out the -y
10=3y+3
You add the -y to the right side so you get 3y. Then you subtract the 3 from the 10 on the left side and get 7. The final answer is 7/3 or 2.333...