Question

Choose the correct answer.
What is the x value in the equation of 2x + y = 9 if y=9, y = 7 and y = 5?​

Answer 1

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

Answer 2

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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