Question

1. One half of a number added to a second

number equals 4. One half of the first
number decreased by the second number
equals zero. Find the two numbers.

Answer 1

(4, 2)

Explanation:

½x + y = 4

y = 4 - ½x

½x - y = 0

½x - (4 - ½x) = 0

½x - 4 + ½x = 0

x = 4

y = 4 - ½(4)

y = 2