mccormickc mccormickc

04-05-2021
Mathematics

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Solve using substitution
–3x + y = –12
5x − 2y = 17
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Yang100 Yang100

04-05-2021

Answer:

x=7, y=9. (7, 9).

Step-by-step explanation:

-3x+y=-12

5x-2y=17

---------------

y=-12-(-3x)

y=-12+3x

y=3x-12

5x-2(3x-12)=17

5x-6x+24=17

-x+24=17

-x=17-24

-x=-7

x=7

y=3(7)-12

y=21-12

y=9

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