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Solve using the substitution method 3x+5 =y. 3= 2y +x The x coordinate is ?

Solve using the substitution method 3x+5 =y. 3= 2y +x The x coordinate is ?
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1 vote
Solve using the substitution method
3x+5 =y. 3= 2y +x
The x coordinate is ?

User Snewcomer
by
8.2k points

2 Answers

3 votes

3x+5=y\\ 3=2y+x\\\\ 3=2(3x+5)+x\\ 3=6x+10+x\\ 7x=-7\\ x=-1
User David Mulder
by
8.3k points
5 votes
3x+5 =y

3= 2(3x+5) +x
3=6x+10+x
3=7x+10

-7=7x

x=-1 :))
User Shane Doyle
by
8.0k points
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