1.Rozwiąż działanie ; a)0,5-x=-1/2 b)-1/3+ x =2/3 c)6-(-8) podzielić przez x = 1 d)3/4-x=-0,25 e)-11,4+x=-2/5
a)0,5-x=-1/2
-x = -0,5-0,5
-x = -1 |*(-1)
x = 1
b)-1/3+ x =2/3 |*3
-1+3x = 2
3x = 2+1
3x = 3 |:3
c)6-(-8) podzielić przez x = 1|*x
6+8 = x
x = 14
d)3/4-x=-0,25
0,75-x = -0,25
-x = -0,25-0,75
e)-11,4+x=-2/5
-11,4+x = -0,4
x = -0,4+11,4
x = 11
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a)0,5-x=-1/2
-x = -0,5-0,5
-x = -1 |*(-1)
x = 1
b)-1/3+ x =2/3 |*3
-1+3x = 2
3x = 2+1
3x = 3 |:3
x = 1
c)6-(-8) podzielić przez x = 1|*x
6+8 = x
x = 14
d)3/4-x=-0,25
0,75-x = -0,25
-x = -0,25-0,75
-x = -1 |*(-1)
x = 1
e)-11,4+x=-2/5
-11,4+x = -0,4
x = -0,4+11,4
x = 11