Question

6x + 7y = 1
8x - 3y = 25 by equating their coefficient
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Answer 1

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6x+7y=1 -------------(1)

8x-3y=25-------------(2)

multiply eqn 1 by 3,

18x+21y=3 -----------------(3)

multiply eqn 2 by 7,

56x-21y=175 ------------------(4)

(3)+(4)

18x+21y=3 -----------------(3)

+ 56x-21y=175 ------------------(4)

74x=178

x=178/74=89/37

x=89/37

put it in eqn (1)

6(89/37)+7y=1

Answer 2

Step-by-step explanation:

6x+7y=1 -------------(1)

8x-3y=25-------------(2)

multiply eqn 1 by 3,

18x+21y=3 -----------------(3)

multiply eqn 2 by 7,

56x-21y=175 ------------------(4)

(3)+(4)

18x+21y=3 -----------------(3)

+ 56x-21y=175 ------------------(4)

74x=178

x=178/74=89/37

x=89/37

put it in eqn (1)

6(89/37)+7y=1