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how many solutions does the system of equations have?(1 point) 3x=-12y+15 and x+4y=5 A-one B-two C-infinitely many
Question
how many solutions does the system of equations have?(1 point)
3x=-12y+15 and x+4y=5
A-one
B-two
C-infinitely many
D-none
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Mathematics
5 years
2021-09-02T20:36:02+00:00
2021-09-02T20:36:02+00:00 1 Answers
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Answers ( )
Answer:
c
Step-by-step explanation:
First, I’ll isolate the x in x+4y=5 to match with the other equation.
The new equation would be x= -4y+5
Next, we will multiply one equation by 3 and the other by -1 for both to match with the other.
-1(-12y + 15 = 3x )
3(-4y + 5 = x)
The new equations would be :
12y – 15 = -3x
-12y + 15 = 3x
Add the equations and you get
0 = 0
The equation has an infinite amount of solutions