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Solve the simultaneous equations: 2x+3y=7 7x-y=13 I want explanations The answers in the back of the book are : x=2,y=1 I want explanations |
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Answer» Answer: x=2y=1Step-by-step explanation: 2x+3y=7 ........(1) 7x-y=13 =>y=7x-13 ..........(2) PUTTING value of y in from (2) in (1), we get 2x+3(7x-13)=7 =>2x+21x-39=7 =>23x=46 =>x=2 =>y=7x-13 =14-13=1 PLEASE RATE, THANK AND MARK AS BRAINLIEST. |
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