Final answer:
To solve x + 2y = 42, rearrange the equation to solve for x, substitute values for y, and solve for x.
Step-by-step explanation:
To solve the equation x + 2y = 42, we need to find the values of x and y that satisfy the equation.
To do this, we can rearrange the equation to solve for x: x = 42 - 2y.
Then we can substitute different values for y and solve for the corresponding values of x. For example, if y = 10, then x = 42 - 2(10) = 22. So one solution is x = 22 and y = 10.