If x = 4 and y = 5 - x, what is the value of y?

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Multiple Choice

If x = 4 and y = 5 - x, what is the value of y?

Explanation:
Substitute the given value of x into the expression for y. If x = 4, then y = 5 - x = 5 - 4 = 1. So y equals 1. The other numbers would require a different x (for example, y = -1 would need x = 6; y = 9 would need x = -4; y = 0 would need x = 5), but x is fixed at 4, so they don’t apply here.

Substitute the given value of x into the expression for y. If x = 4, then y = 5 - x = 5 - 4 = 1. So y equals 1. The other numbers would require a different x (for example, y = -1 would need x = 6; y = 9 would need x = -4; y = 0 would need x = 5), but x is fixed at 4, so they don’t apply here.

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