Question

3x + 2y - 6 and 5x - 4y + 2

Answer 1

Step-by-step explanation:

Given:

3x + 2y - 6

5x - 4y + 2

Solution:

( sending variables to other side changes their signs)

3x +2y = 6 ---> eq1

5x - 4y = -2----> eq2

multiplying eq1 with 2

2( 3x + 2y = 6)

6x +4y = 12---> eq3

Adding eq 1 and eq 3

6x +4y = 12

+ 5x - 4y = -2 ( +4y and -4y gets cancelled)

x = 10

Putting x= 10 in eq 1

3x +2y = 6

3* 10 + 2y = 6

30 +2y = 6

2y= 6-30

y= -24/2

y = -12

Therefore,

y = -12

x = 10