Question

Solve. help fast!! alots of points
x + y=10
x-y=-1

Answer 1

X = 4.5, Y = 5.5………………………………………

Answer 2

∴ x = 4.5, y = 5.5

Explanation:

x + y = 10 ------ equation (1)

x - y = -1 ------ equation (2)

Add equations (1) and (2):

(x + y) + (x - y) = 10 + (-1)

x + y + x - y = 10 - 1

2x = 9

∴ x = 4.5

Substitute x = 4.5 into equation (1):

4.5 + y = 10

∴ y = 5.5