marinashenouda7 marinashenouda7

17-04-2018
Mathematics

contestada

3p+4q= 10 5p-4q= -26 Solve the system of equations using elimination. Write your answer as (p, q).

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mkryukova19 mkryukova19

17-04-2018

3p+4q=10
5p-4q=-26

Add both equations
3p+4q+5p-4q=10-26
8p=-16
p=-2

3p
3p+4q=10
3(-2)+4q=10
-6+4q=10
4q=16
q=4

(-2,4)

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