Question

Solve by substitution method 7x+3y=27;2x+5y=16

Answer 1

(7x+3y=27)×2

(2x+5y=16)×7

=14x+35y=112

=14x+6y=54

=29y=58

y=58/29=2

y=2

7x+3(2)=27

=7x=27-6

=7x=21

x=21/7=3

=x=3

so this is ur answer

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