Rozwiąż równaia:
a) 7x - 6 = 6x + 7
b) 1/3x + 2 = x
c) -7(2x + 1 ) = 4
d) 8 = 6(x - 1) - 4x
e) 2(1-x) = 6(2x - 2)
f) 3-x/2 + x+2/2 = 1/2
g) 1/4x - x-1/4 = 1/4
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a/
7x-6=6x+7
7x-6x=6+7
x=-1
b/
1/3x+2=x/*3
x+6=3x
x-3x=-6
-2x=-6/:(-2)
x=3
c/
-7(2x+1)=4
-14x-7=4
-14x=7+4
-14x=11/:(-14)
x=(-11/14)
d/
8=6(x-1)-4x
8=6x-6-4x
-6x+4x=-8-6
-2x=-14/:(-2)
x=(-7
e/
2(1-x)=6(2x-2)
2-2x=12x-12
-2x-12x=-2-12
-14x=-14
0=0
f/
3-x/2+x+2/2=1/2/*2
6-1/4+2x+2=1/*4
24-1+8x+8=4
8x=-24+1-8+4
8x=(-27)/:8
x=(-3 3/27)
g/
1/4x-x-14=1/4/*4
x-4x-56=1
x-4x=56+1
-3x=57/:(-3)
x=(-18 /57)
mysle ze pomoglam:)