Final answer:
To solve the equation 2x + y = 10 for y, subtract 2x from both sides.
Step-by-step explanation:
To solve the equation 2x + y = 10 for y, we need to isolate the y variable.
To do this, we can subtract 2x from both sides of the equation:
2x + y - 2x = 10 - 2x
y = 10 - 2x
Therefore, the solution for y is y = 10 - 2x.