rozwiąz równanie:
a) 2(x+3) -3(x+1)= x-13
b) 1+2[3(x-1) - 5(2x -3)]= 2x - 7
c) 5(x-1) - 2(x+3)= 3x+2
d) 3(2x - 3) + 2(x-4)= 4(x-2) - 3(5-x)
e) 4(x-2) -5(3x-9)=0
f) 2(3-x)+ 5= 3-2(x-4)
:)
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a) 2(x+3)-3(x+1)=x-13
2x+6-3x-3=x-13
-x+3=x-13
-2x=-16 /:(-2)
x=8
b) 1+2[3(x+1)-5(2x-3)]=2x-7
1+2[3x-3-10x+15]=2x-7
1+2(-7x+12)=2x-7
1-14x+24=2x-7
-16x=-32/:(-16)
x=2
c)5(x-1)-2(x+3)=3x+2
5x-5-2x-6=3x+2
0=23 sprzeczne równanie
d) 3(2x-3)+2(x-4)=4(x-2)-3(5-x)
6x-9+2x-8=4x-8-15+3x
8x-17=7x-23
x=6
e) 4(x-2)-5(3x-9)=0
4x-8-15x+45=0
-11x=-37/:(-11)
x=37/11
x=3 cale i 4/11
f) 2(3-x)+5=3-2(x-4)
6-2x+5=3-2x+8
0=0