Question

Rezolva ecuatiile : a) - radical 36: × = -0,(3) ; b) 2(×-1) = 4 supra 5 ; c ) 0,3× -0,1× = -2 VA ROG FRUMOS

Answer 1

a) -√36 = -6
-6:x=-⅓
6:x=1/3
x = 18

b) 2x - 2 = 4/5
2x = 4/5 + 2 = 14/5
x = 7/5

c) 0.3x-0.1x = -2
0.2x = -2 |*5
x = -10