Mercedes C.

asked • 06/29/17

Tell which equation you would choose to solve for one of the variables...

1.) 3x-2y=19 or x+y=8
 
2.)3x+5y=25 or x-2y=-6

1 Expert Answer

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Michael J. answered • 06/29/17

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For each one, you should use the equation that has a variable with coefficient of 1.  This will allow you to use the substitution method.
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Mark M.

Yet by subtracting first 1) from first 2), 2y = 6. That seems rather easy.
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06/29/17

David W.

. . . except that you should have gotten 7y = 6.  That makes it somewhat harder.
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06/29/17

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