Solve equations by using elimination -4+5y= 13 X-5y=21 ( , )

Question

Solve equations by using elimination
-4+5y= 13
X-5y=21
( , )

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Bình An 6 months 2021-08-25T11:26:02+00:00 1 Answers 4 views 0

Answers ( )

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    2021-08-25T11:27:38+00:00

    Answer:

    y=17/5 ,x= 38

    Step-by-step explanation:

    -4+5y =13 add 4 both side

    4-4+5y=13+4

    5y=17

    5y/5=17/5 y=17/5

    x-5y=21

    x-5(17/5)=21

    x-17=21

    x=21+17= 38

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