a)-7(x-2)=3x-1
b)2,1-0,3x=0,4x
c)5/6(x-1)=4
d)Tu sa ułamki : x+5/4-2x+1/8=1/2(2-x)
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a) -7x + 14 = 3x - 1
-10x = -15 /: -10
x = 1,5
b) 0,7x = 2,1 / 0,7
x= 2,1
c) 5/6x - 5/6 = 4
5/6x = 4 i 5/6 /:5/6
x = 5,8
d) x+1,25 - 2x +0,125 = 1-0,5x
0,375 = 0,5x / 0,5
x = 0,75
-7(x-2)=3x-1
-7x+14=3x-1
-7x-3x=-1-14
-10x=-15 /:(-10)
x=1,5
2,1-0,3x=0,4x
-0,3-0,4x=-2,1
-0,7x=-2,1 /:(-0,7)
x=3
5/6(x-1)=4
5/6x-5/6=4
5/6x=4+5/6
5/6x=29/6 /*6/5
x=29/5=5 i 4/5
x+5/4-2x=1/8=1/2(2-x)
-x+11/8=1-1/2x
-x+1/2x=-3/8
-1/2x=-3/8 / *(-2)
x=3/4
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a) -7x + 14 = 3x - 1
-10x = -15 /: -10
x = 1,5
b) 0,7x = 2,1 / 0,7
x= 2,1
c) 5/6x - 5/6 = 4
5/6x = 4 i 5/6 /:5/6
x = 5,8
d) x+1,25 - 2x +0,125 = 1-0,5x
0,375 = 0,5x / 0,5
x = 0,75
-7(x-2)=3x-1
-7x+14=3x-1
-7x-3x=-1-14
-10x=-15 /:(-10)
x=1,5
2,1-0,3x=0,4x
-0,3-0,4x=-2,1
-0,7x=-2,1 /:(-0,7)
x=3
5/6(x-1)=4
5/6x-5/6=4
5/6x=4+5/6
5/6x=29/6 /*6/5
x=29/5=5 i 4/5
x+5/4-2x=1/8=1/2(2-x)
-x+11/8=1-1/2x
-x+1/2x=-3/8
-1/2x=-3/8 / *(-2)
x=3/4