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a)
-3/5x=-5|*5
3=-25x
25x=3
x=0,12
b)
3/4x= -4/9
-27=-16x
16x=27
x=1¹¹/₁₆
c)
0,1x= -7
x=-70
2. Rozwiąż równania:
a)
-3x=2x -10
-3x-2x=-10
-5x=-10
x=2
b)
2x - 2=7-x
2x+x=7+2
3x=9
x=3
c)
10=4-2x
2x=4-10
2x=-6
x=-3