Question

3x+4y = 10 equation 1 and 2x - 2y = 2
question of rd Sharma​

Answer 1

Answer:

x = 2

y = 1

Step-by-step explanation:

3x + 4y = 10 _____ (1)

2x - 2y = 2 ______(2)

Multiplying (2) by 2 and adding both the equations,

3x + 4y = 10 (+) 4x - 4y = 4

=> 7x = 14

x = 2

Substituting x = 2 in (1)

3x + 4y = 10

(3*2) + 4y = 10

6 + 4y = 10

4y = 10 - 6

4y = 4

y = 1

Answer 2

Answer:

3x+4y=10_ (I)

2x-2y=2 _(ii)

multiply the equation ii with 2 and then add to equation I

thus

7x= 14

x=2

by substituting x=2 in equation ii

4-2y=2

2y=2

y=1

hope this will be helpful to you