Question

Acj giúp e vs ạ E đang cần gấp

Answer 1

a: x=4/15-3/5=-5/15=-1/3

b: x=1/10+1/15=3/30+2/30=5/30=1/6

c: x=-2/15+3/10=-4/30+9/30=5/30=1/6

d: =>3/5x=9/14

=>x=9/14:3/5=9/14x5/3=45/42=15/14

e: =>1/3:2x=-5-1/4=-21/4

=>2x=-1/3:21/4=-1/3x4/21=-4/63=-2/21

=>x=-1/21