Solve the equation y=2x-4, 3x+y=11
2 answers:
Answer:
Step-by-step explanation:
this system not equation :
y=2x-4 ....(1)
3x+y=11....(2)
put the value of y by (1) in to (2) :
3x+2x-4 = 11
add4 : 3x+2x =15
5x=15
x=15/5 = 3
but: y = 2x-4
so : y = 2(3) -4
y = 6-4=2
Answer:
(3, 2)
Step-by-step explanation:
Given the 2 equations
y = 2x - 4 → (1)
3x + y = 11 → (2)
Substitute y = 2x - 4 into (2)
3x + 2x - 4 = 11
5x - 4 = 11 ( add 4 to both sides )
5x = 15 ( divide both sides by 5 )
x = 3
Substitute x = 3 into (1) for corresponding value of y
y = (2 × 3) - 4 = 6 - 4 = 2
Solution is (3, 2)
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