Question

solve the equation.
x + 7y = 10 ; 3x - 2y = 7 .​

Answer 1

Answer:

x + 7y = 10---------------Eq 1 (mutiply by 3)

3x - 2y = 7---------------Eq 2(multiply by 1)

We get,

3x + 21y = 30

3x - 2y = 7

Change signs,

23y = 23

y = 1

By substituting the value of y we can get x,

x + 7(1) = 10

x = 10 - 7

x = 3

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Answer 2

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