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3x-y equals 7 2x plus y equals 8? - Answers

1)3x-y=72)2x-y=82) * (-1) so it becomes1)3x-y=72)-2x+y=-81)+ 2) so it becomes3x=(-2x)-y+y=7+(-8)x= -15 that meens y=8+2x=8-30=-22Improved Answer:3x-y = 72x+y = 8Add both equations together:5x = 15x = 3Substitute the value of x into the equations to find the value of y:x = 3 and y = 2



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3x-y equals 7 2x plus y equals 8? - Answers

https://math.answers.com/math-and-arithmetic/3x-y_equals_7_2x_plus_y_equals_8

1)3x-y=72)2x-y=82) * (-1) so it becomes1)3x-y=72)-2x+y=-81)+ 2) so it becomes3x=(-2x)-y+y=7+(-8)x= -15 that meens y=8+2x=8-30=-22Improved Answer:3x-y = 72x+y = 8Add both equations together:5x = 15x = 3Substitute the value of x into the equations to find the value of y:x = 3 and y = 2



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https://math.answers.com/math-and-arithmetic/3x-y_equals_7_2x_plus_y_equals_8

3x-y equals 7 2x plus y equals 8? - Answers

1)3x-y=72)2x-y=82) * (-1) so it becomes1)3x-y=72)-2x+y=-81)+ 2) so it becomes3x=(-2x)-y+y=7+(-8)x= -15 that meens y=8+2x=8-30=-22Improved Answer:3x-y = 72x+y = 8Add both equations together:5x = 15x = 3Substitute the value of x into the equations to find the value of y:x = 3 and y = 2

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      1)3x-y=72)2x-y=82) * (-1) so it becomes1)3x-y=72)-2x+y=-81)+ 2) so it becomes3x=(-2x)-y+y=7+(-8)x= -15 that meens y=8+2x=8-30=-22Improved Answer:3x-y = 72x+y = 8Add both equations together:5x = 15x = 3Substitute the value of x into the equations to find the value of y:x = 3 and y = 2

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