Решите уравнения : 1)2-1,75х=1,25х-0,5
2)5*(х+1,2)=12,5х
1) 2-1.75x=1.25x-0.5
-1.75x-1.25x=-0.5-2
-3x=-2.5
x=2.5 :3
x=25/30
x=5/6
2) 5*(x+1.2)=12.5x
5x+6=12.5x
12.5x-5x=6
7.5x=6
x=6:7.5
x=0.8
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Answers & Comments
1) 2-1.75x=1.25x-0.5
-1.75x-1.25x=-0.5-2
-3x=-2.5
x=2.5 :3
x=25/30
x=5/6
2) 5*(x+1.2)=12.5x
5x+6=12.5x
12.5x-5x=6
7.5x=6
x=6:7.5
x=0.8