У - 13/51 = - 9/34 у = - 9/34 + 13/51 у = - 27/102 + 26/102 y = - 1/102 ---------------------------------- 2/3 - z = 0,4 2/3 - z = 4/10 2/3 - z = 2/5 z = 2/3 - 2/5 z = 10/15 - 6/15 z = 4/15 ---------------------------------- 4/7 + t = 7/10 t = 7/10 - 4/7 t = 49/70 - 40/70 t = 9/70
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Verified answer
У - 13/51 = - 9/34у = - 9/34 + 13/51
у = - 27/102 + 26/102
y = - 1/102
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2/3 - z = 0,4
2/3 - z = 4/10
2/3 - z = 2/5
z = 2/3 - 2/5
z = 10/15 - 6/15
z = 4/15
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4/7 + t = 7/10
t = 7/10 - 4/7
t = 49/70 - 40/70
t = 9/70