solve 3x+y=8,x-y=4 in any method
Answers
Answered by
1
Answer:
3×+y=8,x-y=4
Step-by-step explanation:
3×+×+y-y=8+4=4×=12=×=12÷4=3
Answered by
2
Step-by-step explanation:
3x+y= 8
=>3x= 8-y
=> x= 8-y/3
Putting x= 8-y/3 in x-y= 4 we have
8-y/3-y= 4
=> 8-y-3y/3= 4
=> -4y+8= 12
=> -4y= 12-8
=> -4y= 4
=>y= 4/-4
=> y = -1
then x = 8-(-1)/3= 8+1/3= 9/3= 3
So
x= 3
y= -1
hope it helps ✌
Similar questions
English,
6 months ago
Math,
6 months ago
Computer Science,
1 year ago
Business Studies,
1 year ago
Biology,
1 year ago
Biology,
1 year ago