38.0k views
2 votes
How do I solve this by using substitution ?Y=3x-24
5x-y=28
Solving for x and y.

2 Answers

3 votes
Plug in y=3x-24
5x-(3x-24)=28 combine your x
2x+24=28
Subtract2x=4
Divide x=2
Plugin to y equation
Y= 3(2)-24
Y=-18
User Anand Rathi
by
6.8k points
6 votes
y=3x-24

x=8+y/3 for y and x=y/5+28/5 for x

5x-y=28
x=y/5+28/5 for x and x= 8+ y/3 for y
User Pangi
by
6.6k points
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