1.rozwiąz równania
d : -(2x-1) =4
e : 2(x+1)=x
f : 2t - (3t +1)=6
g : -(4=X)=2(3-X)
I : (x-7)-2(3x+5)=3
d :
-(2x-1) =4
-2x+1=4
-2x=4-1
-2x=3/:(-2)
x=-1 1/2e :
2(x+1)=x
2x+2=x
2x-x=-2
x=-2
f :
2t - (3t +1)=6
2t-3t-1=6
-t=6+1
-t=7/*(-1)
t=-7g :
-(4=X)=2(3-X) ?????
I :
(x-7)-2(3x+5)=3
x-7-6x-10=3
-5x-17=3
-5x=3+17
-5x=20/:(-5)
x=-4
-2x + 1 = 4
-2x = 4-1
-2x = 3 /: (-2)
x= - 3/2
e :
2x + 2 = x
2x - x = -2
2x = -2 / : 2
x = -2
2t - 3t - 1 = 6
-t = 6 + 1
-t = 7 / * (-1)
t= -7
g :
-(4+X)=2(3-X)
-4 - x = 6 - 2x
-x + 2x = 6 + 4
x = 10
x - 7 - 6x - 10 = 3
- 5x = 3 + 17
-5x = 20 / (-5)
x = -4
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d :
-(2x-1) =4
-2x+1=4
-2x=4-1
-2x=3/:(-2)
x=-1 1/2
e :
2(x+1)=x
2x+2=x
2x-x=-2
x=-2
f :
2t - (3t +1)=6
2t-3t-1=6
-t=6+1
-t=7/*(-1)
t=-7
g :
-(4=X)=2(3-X) ?????
I :
(x-7)-2(3x+5)=3
x-7-6x-10=3
-5x-17=3
-5x=3+17
-5x=20/:(-5)
x=-4
d :
-(2x-1) =4
-2x + 1 = 4
-2x = 4-1
-2x = 3 /: (-2)
x= - 3/2
e :
2(x+1)=x
2x + 2 = x
2x - x = -2
2x = -2 / : 2
x = -2
f :
2t - (3t +1)=6
2t - 3t - 1 = 6
-t = 6 + 1
-t = 7 / * (-1)
t= -7
g :
-(4+X)=2(3-X)
-4 - x = 6 - 2x
-x + 2x = 6 + 4
x = 10
I :
(x-7)-2(3x+5)=3
x - 7 - 6x - 10 = 3
- 5x = 3 + 17
-5x = 20 / (-5)
x = -4