Answer:
(1, 3 )
Step-by-step explanation:
Given the 2 equations
y = 3x → (1)
x + y = 4 → (2)
Substitute y = 3x into (2)
x + 3x = 4, that is
4x = 4 ( divide both sides by 4 )
x = 1
Substitute x = 1 into (1) for corresponding value of y
y = 3 × 1 = 3
Solution is (1, 3 )
Answer:
x = 1 & y = 3
Step-by-step explanation:
y = 3x -----(1)
x + y = 4 -------(2)
sub(1)into(2)
x + 3x = 4
4x = 4
x = 1
sub x=1 into(1)
y = 3(1)
y = 3
