Question

v) In the equation 2X+ 3y=11 ,find the value (a)x if y=5 and (b) y if x=4
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Answer 1

Answer:

(a) -2 and (b) 1

Step-by-step explanation:

(a) Now if y = 5 , then

2x + 3(5) = 11

2x + 15 = 11

2x = 11 - 15

2x = -4

x = -4/2

x = -2

(b) Now if x = 4 , then

2(4) + 3y = 11

8 + 3y = 11

3y = 11 - 8

3y = 3

y = 3/3

y = 1

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Answer 2

Answer:

Step-by-step explanation:

Given,

The equation is 2x + 3y = 11

(a) x if y = 5

2 × 5 + 3y = 11

10 + 3y = 11

3y = 11 - 10

3y = 1

y = 1/3

(b) y if x = 4

2x + 3 × 4 = 11

2x + 12 = 11

2x = 11 - 12

2x = -1

x = -1/3