Math, asked by Anonymous, 10 months ago

2x - y = 30, x+2y = 40 solve using elimination method​

Answers

Answered by AYANTIKmaestro
1

Step-by-step explanation:

2x-y=30

2(x+2y)=(40)2

2x-y=30

2x-4y=80

(-). (+). (-)

________

0+3y

Answered by mannkataria2005
0

Answer:

x= 20 and y= 10

Step-by-step explanation:

step 1 multiply equation 2nd by 2   then, the equation is    2x + 4y = 80                       by using elimination method                    

2x - y = 30

2x +4y = 80

-      -        -

-5y = -50

y = 10

put y =10 in eq 1

2x - 10 =30

2x = 40

x = 20

x = 20 , y = 10

                                                               

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