Using the given equations:
y + x = 5
y = 5 - x
Substituting the value of y in the first equation:
Y = 4x
5 - x = 4x
5 = 5x
x = 1
Substituting the value of x in y = 5 - x:
y = 5 - 1 = 4
Therefore, the solution is (1,4), which is option B.
Y = 4x and y + x = 5
A. (-4,1)
B. (1,4)
C. (-3,2)
D. (2,3)
1 answer