Question

Rezolvaţi în mulţimea fracţiilor zecimale ecuatiile:
1) a)x+34,5=117,179; b)x+579=779,501; c)x-13,4+x=4,156; d)415-13,4+x=598,13; e)4x-18,94=3x+0,349; f)3x-3,84+2x=2x-1,235+x; g)2x-3,14+x=x+7,85; h)4x-2,15+3x=3x+7,85; i)3x-12,25+2x+x=x-6,25 j)8x+1,345-2x=7,395-2x+0,35 k)14x+12,25-7x=24,01-7x

2) a) x+4,15=13,05; b)x+45=118,19; c)x-4,15=118,19; d)x:1,5=3,2; e)7,025:x=0,5; f)x × 3,2=1,28; g)x × 0,12=2,88; h)x × 10 la putera 2=3,12; i)x : 10 la putera 2=0,42; j)x : 0,001=0,00001

Answer 1

a.x+34
x=34 la a doua
x=1756