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What's the first step to solve the system of equations?x-3y=72x-6y=121. Multiply the top equation by 22. Add the two equations3. Multiply the top equation by -2

User Oliver Benning
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1 Answer

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Solving a System of Equations by Elimination

To solve a system of equations by elimination, we need to simplify it in such a way that one of the variables cancels out and leave only one to solve for.

We are given the equations:

x - 3y = 7

2x - 6y = 12

To eliminate the variable x, we need to have their coefficients add up to zero.

This can be done by multiplying the top equation by -2 and add the two resulting equations.

Answer: 3. Multiply the top equation by -2

Note: This system has no solution because the equations are represented as parallel lines.

User Leigh Bicknell
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