A system of equations is shown below:
n = 3m + 5
n − 2m = 3
What is the solution, in the form (m, n), to the system of equations?
(2, 11)
(1, 8)
(−2, −1)
(−3, −4)
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OpenStudy (godlovesme):
n = 3m+5 so plug '3m+5' for n in the second formula like
(3m-5) -2m = 3
OpenStudy (anonymous):
so would it be c? :E
OpenStudy (godlovesme):
one sec
OpenStudy (anonymous):
ok
OpenStudy (godlovesme):
how did u get C? i got different answer O-o
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OpenStudy (anonymous):
well i did it wrong, i think i used elimination (i suck at math)
but what did you get, could you explain it?(:
OpenStudy (godlovesme):
yes i will :D
(3m-5)-2m = 3
did u understand what i did ^^ ?
OpenStudy (anonymous):
yes
OpenStudy (godlovesme):
so
(3m-5)-2m= 3
3m-2m -5 = 3
1m -5 + 5 = 3+5
m= 8
OpenStudy (anonymous):
wait, so it would be B (1,8)
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OpenStudy (godlovesme):
hold on i think i did something wrong o-o
OpenStudy (anonymous):
ok hahah
OpenStudy (godlovesme):
wait it was +5 NOT -5 my bad :/
OpenStudy (anonymous):
oh its okay
OpenStudy (godlovesme):
ok here
(3m + 5) -2m = 3
3m -2m +5 = 3
1m +5-5= 2-5
m= -2
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