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25-02-2019
Mathematics

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5x+3y=28

2x+y=11

Solve algebraically

Respuesta :

goodperson21 goodperson21

25-02-2019

Answer: x=5, y=1

Step-by-step explanation:

Note: (1) means equation 1 and so on

5x+3y=28 (1)

2x+y=11 (2)

(1)-(2)= 3x+2y=17 (3)

(3)-(2)= x+y=6 (4)

(2)-(4)= x=5 (5)

Insert (5) into (2)

2(5)+y=11

10+y=11

y=1

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