4. 3x + y = 7 and 4x – y = 7 solve by graphical method using graph
Answers
Answered by
0
Answer:
3x+y=7
3x=7-y
x=7-y/3
put any value of y and you will get x and y value
4x-y=7
4x=7+y
x=7+y/4
put y value and simplify and you will get x and y value
Answered by
0
Answer:
3x+y=7and 4x-y=7
Step-by-step explanation:
3x+y=7
3x+y-7=0
=-7+3*x+y
=-4x+y
4x-y=7
=4x-y-7=0
=-7+4*x-y
=-3x-y
=-4x+y=-3x-y
=y+y=-3x+4x
=2y=x put x value and you will find your answer
Similar questions