Question

x+2y=21 ; 2x +3y =10

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Answer 1

Answer:

x=21-2y

2x= 10-3y

x= 10-3y/2

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Answer 2

Answer:

ist so easy dear mate

Step-by-step explanation:

2x + 3y = 10........(1)

x + 2y = 21.........(2)

(-). (-). (-)....... changed - to + ,+ to -

-----------------------------

=x +. y = -11......(3)

x = -y-11.......(4)

in (2)

.....

( -y-11) + 2y = 21... according to.....,(4)

(-y-11)=-2+21

,,. = 19

-y = 19+11

-y = 30

then

y= -30

ok

then 'y' value add to 'x' place and u can see the answer

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