Final answer:
To find the value of x in the equation y + x = 2, subtract y from both sides to isolate x. The value of x is equal to 2 minus the value of y. The correct answer is a) x = 2 - y.
Step-by-step explanation:
To find the value of x in the equation y + x = 2, we need to isolate x on one side of the equation.
Subtracting y from both sides gives us x = 2 - y.
So, the correct answer is a) x = 2 - y.
This means that the value of x is equal to 2 minus the value of y. For example, if y is 1, then x would be 2 - 1 = 1.