a)-3(x-1)= -9 -3x+3= -9 -3x= -9-3 -3x= -12 /:(-3) x=4 b)-x+6=2x-10 -x-2x= -10-6 -3x= -16 /:(-3) x=16/3 x=5 i 1/3 c)-6x/2=0,4 /*2(wszystko mnożymy przez 2) -6x=0,8 /*10 -60x=8 /:(-60) x= -8/60 x= -2/15 d)-0,5x=10 /*10 -5x=100 /:(-5) x= -100/5 x= -20 e)x/3=1 i 1/2 /*6 2x=9 /:2 x=9/2 x=4 i 1/2 f)x-6=2x x-2x=6 -x=6 /*(-1) x= -6 g)-0,7x=70 /*10 -7x=700 /:(-7) x= -700/7 x= -100 h)2(x-6)=4 2x-12=4 2x=4+12 2x=16 /:2 x=8 i)6=4(2x-3) 6=8x-12 -8x= -12-6 -8x= -18 /:(-8) x=18/8 x=2 i 2/8 x=2 i 1/4
-3(x-1)=-9 -3x+3=-9 -3x=-9-3 -3x=-12/:(-3) x=4 -x+6=2x-10 -x-2x=-10-6 -3x=-16/:(-3) x=16/3 x=5 i 1/3 -6x/2=0,4 -3x=0,4/:(-3) x=-2/15 -0,5x=10/:(-0,5) x=-20 x/3=1 i 1/2 x/3=3/2/*6 2x=9/:2 x=9/2 x=4 i 1/2 x-6=2x x-2x=6 -x=6*(-1) x=-6 -0,7x=70/:(-0,7) x= -100 2(x-6)=4 2x-12=4 2x=4+12 2x=16/:2 x=8 6=4(2x-3) 6=8x-12 8x=-12-6 8x=-18/:8 x=-18/8 x=-2 i 2/8 x=2 i 1/4
