Odpowiedź :
1.
a)
[tex]6x - 2 = 5x - 4\\\\6x-5x = -4 + 2\\\\\boxed{x = -2}[/tex]
b)
[tex]2x+5 = 17\\\\2x = 17-5\\\\2x = 12 \ \ |:2\\\\\boxed{x = 6}[/tex]
c)
[tex]3x-4 = x + 9\\\\3x-x = 9+4\\\\2x = 13 \ \ |:2\\\\\boxed{x = 6\frac{1}{2}}[/tex]
d)
[tex]2(x+5) = x-4\\\\2x+10 = x - 4\\\\2x-x = -4-10\\\\\boxed{x = -14}[/tex]
e)
[tex]\frac{1}{4}x -2 = -\frac{1}{4}x + 2\\\\\frac{1}{4}x+\frac{1}{4}x = 2+2\\\\\frac{2}{4}x = 4\\\\\frac{1}{2}x = 4 \ \ |\cdot2\\\\\boxed{x = 8}[/tex]
Odpowiedź:
a)
6x-2=5x-4
6x-5x=-4+2
x=-2
b)
2x+5=17
2x=17-5
2x=12 /:2
x=6
c)
3x-4=x+9
3x-x=9+4
2x=13 /:2
x=6,5
d)
2(x+5)=x-4
2x+10=x-4
2x-x=-4-10
x=-14
e)
1/4*x-2=-1/4*x+2
1/4x+1/4x=2+2
2/4x=4 /*4/2
x=16/2
x=8
Szczegółowe wyjaśnienie: