Question

3x + २y = 1
2x - y = 2

solve it by elimination method for 20 points​

Answer 1

Answer:

x = -1

y = -1

Explanation:

2x - y = - 1 -------------------(1)

3x + 2y = - 5 --------------(2)

Solve equation (1) for y

-y = - 1 - 2x

y = 1 + 2x

Put the value y = 1 + 2x in the equation (2)

3x + 2(1 + 2x) = - 5

3x +2 + 4x = - 5

7x = - 5 - 2

x

=

−

7

7

x = -1

put the value x = -1 in equation (1)

3(-1) +2y = -5

-3 + 2y = -5

2y = -5 +3

y

=

−

2

2

=

−

1

Answer 2

Answer:

your first answer is -4 because X + Y is equal to 1 minus 3 minus 2 is equal to minus 4

Step-by-step explanation:

x minus Y is equal to 2 minus 2 is equal to zero therefore your answer is neutral