Question

1.Aflati x din egalitatile. a) x+ 1 supra 2 = 5 supra 2 b) 3 supra 5 + x = 4 supra 5 c) 2 supra 3 + 5 supra 6 + x d) x- 3 supra 11 = 5 supra 11 e) 11 supra 4 - x = 3 supra 2 f) 5 supra 7 = 15 supra 7 - x Va rog e urgent

Answer 1

a)x+1/2=5/2=>x+1=5*2/2=>x=5-1=>x=4
b)3/5+x=4/5=>5+x=3*5/4=>x=15/4-5=>x= -5/4
d)x-3/11=5/11=>x-3=5=>x=8
e)11/4-x=3/2=>4-x=11*2/3=>x=4-22/3=>x= -10/3
f)5/7=15/7-x=>7-x=15*7/5=>7-x=21=>x= -14
c-ul ești sigur că e scris corect?