(3 1/2-1/4x)×8=3 d)(5 3/5-2/3x)×15=8 w)18 5/44-m=16 - вопрос №31214835352315818544167226132028157549649 от Minydog 13.12.2021 01:23

Question

Математика: (3 1/2-1/4x)×8=3 d)(5 3/5-2/3x)×15=8 w)18 5/44-m=16 7/22 g)6 13/20-k=2 8/15

Minydog · Answer

(3 1/2-1/4x)×8=3 -1/4х=3/8-3 1/2-1/4х=-3 4/8+3/8Х=-3 1/8:(-1/4)Х=25/8*4/1Х=25/2=12 1/2d)(5 3/5-2/3x)×15=8-2/3х=8/15-5 3/5-2/3х=-5 9/15+8/15Х=-5 1/15:(-2/3)Х=76/15*3/2=38/5Х=7 3/5 w)18 5/44-m=16 7/22 -m=16 7/22-18 5/44-m=-18 5/44+16 14/44-m=-17 49/44+16 14/44m=1 35/44g)6 13/20-k=2 8/15K=6 13/20-2 8/15K=4 39/60-32/60K=4 7/60...