Asked by Sharon
Solve by substitution:
y=x-4
x+y=14
y=x-4
x+y=14
Answers
Answered by
drwls
Let's rewrite that as
y - x = -4
y + x = 14
Add those two equations to get
2y = 10
That tells you that y=5
Use either of the orginal equations to get x.
y - x = -4
y + x = 14
Add those two equations to get
2y = 10
That tells you that y=5
Use either of the orginal equations to get x.
Answered by
help
y=x-4
x+y=14
x+(x-4)=14
x+x-4=14
2x=18x
x=9
check answer
x+(x-4)=14
9+9-4=14
18-4=14
14=14
so 9 is your correct answer
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