Question

Solve the system of linear equations by elimination method
2x/3+3y/4=1/12; 3x/4-2y/3=-1/2

Answer 1

Answer:

9

Step-by-step explanation:

x

2

+

y

3

=2

x

4

−

y

9

=−1

Lets assume

x

1

=p and

y

1

=q, both equations will become

2p+3q=2 ...(A)

4p−9q=−1 ...(B)

Multiply (A) by 3, we get

6p+9q=6

4p−9q=−1

Adding these both, we get

10p=5

⇒p=

2

1

⇒ x=

p

2

1

=4

∴q=

3

1

⇒y=

q

2

1

=9