1.

Check weather the following statement 3x+2y=5,2x-3y=7 with justification​

Answer»

Answer:

3x+2y=5

2x-3y=7

one can either USE elimination method or substitution.

I will use elimination method

(3x+2y=5)×-3

(2x-3y=7)×2

-9x-6y= -15

4x-6y=14

same sign SUBSTRACT while DIFFERENT sign add

for as we will subtract

-9x-4x= -13x

-6y - -6y=0

-15-14= -29

-13x=29 hence X=29÷13

x=2.23

3x+2y=5

where you SEE x substitute

3(2.23)+2y=5

6.68+2y=5

y= -0.84


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