0,85(x-3)=x-15 pomożecie ???
0,85x-0,85*3=x-15
15-2,55=0,15x
x=83
0,85(x-3)=x-15 0,85x-2,55-=x-15 /+15 0,85x+12,45=x /-0,85x 12,45=0,15x / 0,15 x=83
licze na naj.
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0,85x-0,85*3=x-15
15-2,55=0,15x
x=83
0,85(x-3)=x-15
0,85x-2,55-=x-15 /+15
0,85x+12,45=x /-0,85x
12,45=0,15x / 0,15
x=83
licze na naj.