Math, asked by sadhnakumarijmp, 9 months ago

2x+3y-7=0 , 2x+6y-5=0 find the value of x and y by the elimination method​

Answers

Answered by bhojanapanjan
3

p(x)   =  2x + 3y - 7 = 0 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   = 2x + 3y = 7 \\ q(x) = 2x + 6y - 5 = 0 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   = 2x + 6y = 5 \\ q(x) - p(x) \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  2x + 6y = 5 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  2x + 3y = 7 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:     =  \: 3y =   - 2 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:     =  \:y=  \frac{ - 2}{3}  \\  \\ 2x + 3y = 7 \\ 2x + 3( \frac{ - 2}{3} ) = 7 \\ 2x - 2 = 7 \\ 2x = 7 + 2 = 9 \\  x =  \frac{9}{2}

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