Question

Calculati ecuatia
3,5x+0,5=1,5x+25
0,3x:4,5=27​

Answer 1

Răspuns:

3,5x+0,5=1,5x+25

3,5x+1,5x=0,5+25

5×=25,5

x=25,5:5

x=5,1

0,3x:4,5=27

0,3x=121,5

x=121,5:0,3

×=405

Answer 2

Explicație pas cu pas:

1) 3,5x-1,5x=25-0,5=>2x=24,5=>x=12,25

2)3/10x:9/2=27=>3/10x•2/9=27=>1/5x•1/3=27=>1/15x=27=>x=405