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How many solutions does the following system have? 7x+5y=4; -21x-15y=-12 a)infinitely many solutions b)one solution c)two solutions d)no solutions
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3 votes
How many solutions does the following system have?

7x+5y=4; -21x-15y=-12

a)infinitely many solutions
b)one solution
c)two solutions
d)no solutions

User Bdoshi
by
6.0k points

1 Answer

6 votes

Answer:

Explanation:

we can observe that the second equation is the product of the first equation and -3

there will be infinitely many solutions

User Chris James Champeau
by
6.3k points
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