How do you solve x + y = 6, and y = 2x?
1 Answer
Sep 6, 2015
x = 2
y = 4
Explanation:
x + y = 6 --------------(1)
y = 2x ----------------(2)
Substitute the value of y = 2x in equation (1)
x + 2x = 6
3x = 6
x = 2
Substitute the value x = 2 in equation (2)
y = 2(2) = 4
y = 4
