Question

find the solution by substitution method 3x+2y= –11 and x -2y=-9​

Answer 1

Answer:

3x+2y=-11

3x=-(11+2y)

x=-(11+2y)/3

substitute x value

x-2y=-9

-(11+2y)/3-2y=-9

-11-2y-6y=-27

-8y=-16

y=2

substitute y value in any equation

x-2y=-9

x-4=-9

x=-5

Step-by-step explanation:

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