Odpowiedź :
Odpowiedź:
1) 3(2x-1)-5(x-3)=0
6x-3-5x+15=0
x=-12
2) 2x+5(5x-1)=22
2x+25x-5=22
27x=27
x=1
3)3(4x-1)=2(x+5)-3
12x-3-2x-10+3=0
10x=10
X=1
4)-6x-9+5x-10=-4x-31
3x=-31+19
3x=-12
X= -4
a)
[tex]3(2x-1)-5(x-3) = 0\\\\6x-3-5x+15 = 0\\\\x + 12 = 0\\\\\boxed{x = -12}[/tex]
b)
[tex]2x+5(5x-1) =22\\\\2x+25x-5 = 22\\\\27x = 22+5\\\\27x = 27 \ \ /:27\\\\\boxed{x = 1}[/tex]
c)
[tex]3(4x-1) = 2(x+5)-3\\\\12x-3 = 2x+10-3\\\\12x-2x = 10-3+3\\\\10x = 10 \ \ /:10\\\\\boxed{x = 1}[/tex]
d)
[tex]-3(2x+3)+5(x-2) = -4x-31\\\\-6x-9 + 5x-10 = -4x-31\\\\-x-19 = -4x-31\\\\-x+4x = -31+19\\\\3x = -12 \ \ /:3\\\\\boxed{x = -4}[/tex]