Question

Scrieti sub forma de fractii ordinare ireductibile solutiile urmatoarelor ecuatii. 0,5x-0,25 ori 0,4=0,2x+0,05.

Answer 1

5/10x-25/100*4/10=2/10x+5/100
5/10x-5/50=2/10x+5/100
5/10x-2/10x=5/50+5/100
3/10x=5/50+5/100
30x=10+5
30x=15
x=15/30=1/2
x=1/2

Answer 2

5/10x-25/100*4/10=2/10x+5/100
5/10x-5/50=2/10x+5/100
5/10x-2/10x=5/50+5/100
3/10x=5/50+5/100
30x=10+5
30x=15
x=15/30=1/2
x=1/2
Sper ca te.am  ajutat !