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2/5*3 +2/5*(-x)=-2
6/5-2/5 x=-2
6/5-2/5 x=-10/5
-2/5 x=-16/5 / (-2/5)
x=8
g) 3/4 ( 2 - 3x ) = -6
3/4*2-3/4*(-3x)=-6
6/4-9/4 x=-6
6/4-9/4 x=-24/4
-9/4 x=-30/4 / (-9/4)
x=30/9
x=10/3
h) bład w równaniu
i) 0,6+x/2 = x + 1
x/2-x=1-0.6
-x/2=0,4 / (-1/2)
x=-0.8
2/5*3 +2/5*(-x)=-2
6/5-2/5 x=-2
6/5-2/5 x=-10/5
-2/5 x=-16/5 / (-2/5)
x=8
g) 3/4 ( 2 - 3x ) = -6
3/4*2-3/4*(-3x)=-6
6/4-9/4 x=-6
6/4-9/4 x=-24/4
-9/4 x=-30/4 / (-9/4)
x=30/9
x=10/3
h) bład w równaniu
i) 0,6+x/2 = x + 1
x/2-x=1-0.6
-x/2=0,4 / (-1/2)
x=-0.8