Question

Q7. If 4x +6y=32 and 4x-2y =4, then, 8y is equal to *
1 point
28
30
36
42

Answer 1

Answer:

please mark as best answer..

Answer 2

The value of 8y = 28

Given :

4x + 6y = 32 and 4x - 2y = 4

To find :

The value of 8y equal to

• 28

• 30

• 36

• 42

Solution :

Step 1 of 2 :

Write down the given equations

Here the given system of equations are

4x + 6y = 32 - - - - - - (1)

4x - 2y = 4 - - - - - - - (2)

Step 2 of 2 :

Find the value of 8y

4x + 6y = 32 - - - - - - (1)

4x - 2y = 4 - - - - - - - (2)

Equation 1 - Equation 2 gives

(4x + 6y) - (4x - 2y) = 32 - 4

⇒ 4x + 6y - 4x + 2y = 28

⇒ 8y = 28

The value of 8y = 28

Hence the correct option is 28

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