Question

Solve the system of equations -6x+y=-21 and 2x-1/3y=7. What is the solution to the system of equations

Answer 1

Infinite number of solutions

Explanation:

Write these equations in a column:

-6x+y=-21

2x-1/3y=7

Use elimination by addition and subtraction. Start by multiplying the 2nd equation by 3, obtaining:

-6x+y=-21

6x - y= 21

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0 - 0 = 0

There are an infinite number of solutions. The two equations shown immediately above are multiples of one another.