Question

3x +2y = -4
2x - y = 12

Answer 1

Step-by-step explanation:

x=20/7

y=-44/7

ans

follow me

Answer 2

Answer:

X = 20/7 , y = - 21/10

Step-by-step explanation:

elimination method :

to eliminate y or to cancel y we must have same value that is 2y but in 2nd equation only y is give to create 2y we must multiple equation 2x - y = 12 with 2

now equation become 4x-2y = 24

now 3x + 2y = -4

4x - 2y = 24

opp __________

sign 7x -0 = 20

x = 20/7

now substituting value of x in equation 2x- y = 12

2x20/7 - y = 12

40/7 - y =12

y = - 84/40

y = 21/10