Question

In the equation 2x + 3y = 11, find the value of (a) x if y = 5 and (b) y if x =4.​

Answer 1

Step-by-step explanation:

when y=5

2x + 3y = 11

=> 2x + 3*5 = 11

=> 2x + 15 = 11

=> 2x = 11 - 15

=> 2x = - 4

=> x = -4/2

= -2

when x=4

2x + 3y = 11

=> 2*4 + 3y = 11

=> 8 + 3y = 11

=> 3y = 11 - 8

=> 3y = 3

=> y = 3/3

= 1

Answer 2

Equation : 2x + 3y = 11

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(a) To find =

• Value of x

Given =

• y = 5

So, Let's solve :

2x + 3y = 11

➭2x + 3(5) = 11

➭ 2x + 15 = 11

➭2x = 11 - 15

➭2x = -4

➭ x = -2

Therefore,Value of x = -2 ✓

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(b) To find =

• Value of y

Given =

• x = 4

So, let's solve :

2 x + 3y = 11

➭ 2(4) + 3y = 11

➭ 8 + 3y = 11

➭ 3y = 11 -8

➭ 3y = 3

➭ y = 1

Therefore ,Value of y = 1 ✓