write four solutions for the equation 2x-y =7?
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Answer:
(4,1) (1,-5) (0,-7) (3.5,0)
Step-by-step explanation:
1.let y be 1
therefore
2x-1=7
2x=8
x=8/2=4
(4,1)
2. let x be 1
therefore
2(1)-y=7
2-y=7
-y=7-2
y= -5
(1,-5)
3.let x be 0
therefore
0-y=7
y= -7
(0,-7)
4.let y be 0
therefore
2x-0=7
2x=7
x=7/2=3.5
(3.5,0)
hope you understood!!
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