10
10
x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9
x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
Add: 5x - y + x + y + 8 + 10 ie 6x = 18 so x = 3 and y = 7
10
(x)10=8 8/10=x 8/10=.8 (.8)10=8 So the answer to the problem is x=.8
-2
10
x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9
x + y = 10 y = x + 8 so, x + (x + 8) = 10 2x + 8 = 10 2x + 8 - 8 = 10 - 8 2x = 2 x = 1 and y = 9 because y = x + 8 y = 1 + 8 y = 9
x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
8.
x = 80
6
x = 1.333521432163324
2