MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Algebraic expressions

Select and wr...

Question

Select and write the most appropriate alternative from those given below:
If $7 x + 3 y = 11$ and $3 x + 7 y = - 1$ then $x - y =$

A

3

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

10

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

12

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $3$
$7 x + 3 y = 11$ ......(1)
$3 x + 7 y = - 1$ .....(2)
$(1) - (2)$
$7 x + 3 y - 3 x - 7 y = 11 + 1$
$4 x - 4 y = 12 \Rightarrow x - y = 3$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Select the most appropriate alternative from those given below:
Credit balance of Profit and Loss A/c indicates _______ .

Q. Select the most appropriate alternative from those given below:
Debit balance of Profit and Loss A/c indicates _______.

Q. Select the most appropriate alternative from those given below:
External Liabilities plus Capital is_______ .

Q. Select the most appropriate alternative from those given below:
Carriage inward is debited to ________ Account.

Q. Select the most appropriate alternative from those given below:
Debit balance of Trading Account means _________ .

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Algebraic expressions

Standard VIII Mathematics

Join BYJU'S Learning Program

CrossIcon