1. 6y+3=39 6y=39-3 6y=36/:6 y=6 7y-4=-10 7y=-10+4 7y=-6/7 y=-6/7 5y-3=-12 5y=-12+3 5y=-9 y=-9/5 2. 2+3(x+1)=5 2+3x+3=5 3x=5-5 3x=0 3-2(x+2)=7 3-2x-4=7 -2x=0 1+5(2x+3)=6 1+10x+15=6 10x=-10/:10 x=0 3. x+7+2x-3=4x+10 -1x=3
6y=39-3 6y=36/:6 y=6 7y=-10+4 7y=6/:7 y=6/7 5y=-12 +3 5y=-9/:5 y=1cała 4/5 2. 2+3x +3=5 3x=5-5 3x=0 3-2x-4=7 -2x=7+4 -3 -2x=8/:-2 x=-4 1+10x _15=6 10x=6-15-1 10x=-10/:10 x= -1 3. x +7+2x-3=4x +10 -4x +x +2x= 10+3 -7 -1x=6/:-1 x= -6
1. 6y+3=39 6y=39-3 6y=36 / 6 y=6 7y-4=-10 7y=-10+4 7y=-6 / 7 y=-6/7 5y-3=-12 5y=-12+3 5y=-9 / 5 y=-9/5 2+3(x+1)=5 2+3x+3=5 3x=5-5 3x=0 / 3 x=0 3-2(x+2)=7 3-2x+4=7 -2x=7-4-3 -2x=0 / 2 -x=0 /* -1 x=0 1+5(2x+3)=6 1+10x+15=6 10x=6-15-1 10x=-10 / 10 x=-10 /10 x=-1 x+7+2x-3=4x+10 x+2x-4x=10-7+3 -x=6 /-1 x=-6
