rozwiąz równania a) 5x-6=2(x+1)-5 x=1 b)-x+4=-1/2(x+3)+7 x=-3 c)x+5/4+2x-3/5=1/3+2x d)4x-2/4+2x-3/5=1/3+2x e)2(x-5)+7(x+4)-100=50 f)x-3/5+4=1/2+2x-6
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a) 5x-6=2(x+1) x=1
5*1-6 =2(1+1)
5-6=2+2
-1=4
b) - x + 4 = 1/2 (x+3 ) + 7 x= -3
3+4 = 1/2 (-3+3)+7
7= -2,5 + 2,5 +7
7=7