a.)-5x-5=5 / +5 -5x = 10 / /5 x = 2 b.)1/2x+=-6 /*2 x = -12 d.)3x-4=5x+2 / -3x -4 = 2x +2 /-2 -6=2x / /2 -3=x e.)7-2x=7x-2 /+2x 7= 9x -2 / +2 9 = 9x / /9 x=1
a.)-5x-5=5 -5x=10 x=-2 b.)1/2x+=-6 ? c.)o,6-3/4x=-1/3 -3/4x=-1/3-0,6 -45/60x=-20/60-36/60 -45/60x=-56/60 /*-60/45 x=56/45 d.)3x-4=5x+2 -2x=6 x=-3 e.)7-2x=7x-2 -9x=-9 x=1 f.)2/3(6x-9)=12 12/3x=12+18/3 4x=18 x=4,5 g.)1/10(25x-40)+2=3/4(8x+12)-9 25/10x-40/10+2=24/4x=26/4-9 2,5x-6x=4-2-9+6,5 -3,5x=-0,5 x=1/7
a.)-5x-5=5 -5x=10 x=-2 b.)1/2x+=-6 ? c.)o,6-3/4x=-1/3 -3/4x=-1/3-0,6 -45/60x=-20/60-36/60 -45/60x=-56/60 /*-60/45 x=56/45 d.)3x-4=5x+2 -2x=6 x=-3 e.)7-2x=7x-2 -9x=-9 x=1 f.)2/3(6x-9)=12 12/3x=12+18/3 4x=18 x=4,5 g.)1/10(25x-40)+2=3/4(8x+12)-9 25/10x-40/10+2=24/4x=26/4-9 2,5x-6x=4-2-9+6,5 -3,5x=-0,5 x=1/7