September 2018 2 20 Report

Proszę o sprawdzenia do równań:

1.
a) 2x-(1-4x) = 2 + (8x-5).
b) 4 - 2(5 -x) =x- 4(x- 1)
c) 7 - (3x + 4) = (x + 1) - (2x + 4)
d) x + 3 - (4 -x) = 3x - (2x- 3)
2.
a) x/3 - 5/6 = 1/12 - x/2
b) 7/9 + x/2 = 3/2 - x/18
c) x/2 - 3/4 = 7/8 + x/4
d) x/9 + 1/2 = 5/4 - x/6 + 1/12

/ - kreska ułamkowa!

3.

a) 2x-7-[3-2x-2(1-2x0]=x-11

b) 10-[2(1-x)-3(2x+5)]=2(x+5)+1

c) 8-3x-2[4-(x+5)]=3(x+1)-1

d) 1-2x-3[2x-(-5+x)]=x+4

4.

a) 0,7x - 3 + 1,1x= -2,1x+ 0,6
b) -0,4 + 2x -2,1x =0,3x - 0,8
c) 0,11x - 0,08 + 0,4x = -o,o1x +0,2
d) 0,06x - 1 +0,4x = 0,27 - 0,04x

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