1)m + 3/8m = 1/4 2)y - 2/9y = 4 целые 2/3 3)2/5z - вопрос №681588813814229423325237152124 от kingofpopmusic 20.09.2020 23:15

Question

Математика: 1)m + 3/8m = 1/4 2)y - 2/9y = 4 целые 2/3 3)2/5z + 2/3z - 7/15z = 2 целые 1/2 4)3 целые 1/2 * (2/3x + 4/7) = 2 целые 1/3

kingofpopmusic · Answer

M+3/8m=1/41 3/8  m=1/4m=1/4 : 1 3/8=1/4 * 8/11m=2/11y - 2/9 y=4 2/37/9 y=14/3y=14/3 : 7/9=14/3 * 9/7y=62/5 z+2/3 z - 7/15 z=2 1/2(6/15+10/15 - 7/15)z=2 1/29/15 z=5/23/5 z=5/2z=5/2 : 3/5=5/2 * 5/3z=25/6=4 1/63 1/2 *(2/3 x+4/7)=2 1/32/3 x+4/7=7/3 : 7/2=7/3 * 2/72/3 x+4/7=2/32/3 x=2/3 - 4/72/3 x=14/21 - 12/212/3 x=2/21x= 2/21 : 2/3=2/21 * 3/2x=1/7...