Question

Elimination method 7x - 5y=2
&
x + 2y = 3​

Answer 1

Answer:

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Step-by-step explanation:

7x - 5y = 2 .......... ( 1 )

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

Multiplying equation ( 2 ) by 7

7x - 14y = 21 ......... ( 3)

from ( 1 ) and ( 2 ) , we get

subtracting equation

7x - 14y = 21

7x - 5y = 2

-19y = 19

therefore y = - 1

substituting y = 1 in equation ( 1 )

7x - 5 × 1 = 2

7x - 5 = 2

7x = 2 + 5

7x = 7

x = 1