x = 80
x = 1.333521432163324
no
x+y = 10 and y = x+8 x+x+8 = 10 x+x = 10-8 2x = 2 x = 1 Substitute the value of x into the original equations to find the value of y: So: x = 1 and y = 9
2x - 8 = 10 2x = 10 + 8 2x = 18 x = 18 / 2 x = 9
10
-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
18
x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
8.
x = 80
6
x = 1.333521432163324
2