Rozwiąż:
a) (x+8)(x+1)=(x+3)(x+5)
b)1-x/3 - x/2=2
c)30-10(2-3x)<-50
d)5:x=4:3
e){2x+3y=5(x-3)
4(x+5)-2(y-3)=34
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a) x2+x+8x+8=x2+5x+3x+15
x2+x+8x-x2-5x-3x=15-8
x=7