Mathematics
what is the error show work

Question Description

I’m stuck on a Algebra question and need an explanation.

solve using elimination method

4x + 5y=-8(1)

7x+9y=11(2)

solution multiply (1) by 7  28x+35y

                            (2) by -4  -28 -36=11

now addthe equations 28x +35y=56

-28-36y =11

-y=-45

y=45

now subsitute 45 intoequation (1)

4x+5(45)=-8

4x=225=-8

4x=217

solution  (217/4,45)


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Final Answer

whgrab (11485)
Rice University

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