Question

solve by substitution method
2x+3y=7 , 2x+y=28

Answer 1

Answer:

82

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

2x−3y=7 ----------------(1)

5x+y=9

y=9−5x-------------(2)

Now, substitute equation (2) in equation (1)

Then ,2x−3(9−5x)=7

2x−27+15x=7

17x=27+7

17x=34

x=34/17=2

y=9−5×2=9−10=−1

Therefore x is 2 and y is −1