помогите пж не получается(...

нате17 @нате17

November 2021 1 3 Report

помогите пж не получается(

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gorab2 1) y = x - 2 3) y = 4 - 3x 5) x = -2 - 5y
2x - 3x + 6 = -1 5x + 4 - 3x = 10 -1 - 2,5y - y = 6
-x = -7 2x = 6 -3,5y = 7
x = 7 => y = 7 - 2 = 5 x = 3 => y = 4 - 9 = -5 y = - 2 => x = 8

2)y = 4 + x 4)-3y = 7 - 8x 6) y = -18 + 12x
4x + 4 + x = -1 3y = -7 + 8x x - 9 + 6x = 5
5x = -5 y = (-7 + 8x)/3 7x = 14
x = -1 => y = 3 3x + (-7 + 8x)/3 = 9 | *3 x = 2 => y = 6
9x -7 + 8x = 27
17x = 34
x = 2 => y = 3

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