Răspuns :
7:(5x+3)=1-0,125
7:(5x+3)=0,875
5x+3=7:0,875
5x+3=8
5x=8-3
5x=5
X=5:5
X=1
7:(5x+3)=0,875
5x+3=7:0,875
5x+3=8
5x=8-3
5x=5
X=5:5
X=1
7:(5x+3)=0,875
7:5x=0,875-3
7:5x=-2,125
5x=-2,125 ori 7
5x=-14,875
x=-14,875:5
x=-2,975
7:5x=0,875-3
7:5x=-2,125
5x=-2,125 ori 7
5x=-14,875
x=-14,875:5
x=-2,975