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What is the x value in the equation of 2x + y = 9 if y=9, y = 7 and y = 5?
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Answered by
3
Answer:
(i)y=9
2x+9=9
2x=9-9
2x=0
X= 0/2
X= 0
(ii) y=5
2x+5=9
2x=9-5
2x=4
X=4/2
X=2
(iii)y=7
2x+7=9
2x=9-7
2x=2
X =2/2
X=1
Answered by
4
Answer:
Step-by-step explanation:
2x + y = 9
case 1) where y=9
hence as we have been given the value of y we can easily find the value of x.
2x+y=9
y=9
2x+9=9
2x=9-9
2x=0
hence x=0
ANSWER FOR CASE 1 WHERE Y=9 IS X=0.
case 2) where y=7
putting y=7 in equation
2x+y=9
y=7
2x+7=9
2x=9-7
2x=2
x=1
ANSWER FOR CASE 2 WHERE Y=7 IS X=1
case 3) where y=5
put y=5 in equation.
2x+y=9
y=5
2x+5 = 9
2x= 9-5
2x= 4
x=2
ANSWER FOR CASE 3 WHERE Y=5 IS X=2.
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