pomocy na jutro a muszę to jeszcze napisać na kartce i proszę o działania

2(x-1/2)-x+3=3 2(x-1/2)-x=0 2x-1-x=0 x-1=0 x=1 -3/4-1/4t=2,25 -3/4t-t/4=2,25 -3-t/4=2,25 -3-t=2,25 * 4 -3-t=9 -t=9+3 -t=12 t= -12 3(1-x)-(1-2x)=9 3(1-x)-1+2x=9 3-3x-1+2x=9 3-x-1=9 2-x=9 -x=9-2 -x=7 x= -7 (-1/2x+1)+3/2x=3 -x/2+1+3/2x=3 -x/2+1+3x/2=3 x+1=3 x=3-1 x=2 2x-1/2(3x-2)=7/4-x [latex]2x- frac{3x-2}{2} = frac{7}{4} -x[/latex] [latex]2x+1- frac{3x}{2} = frac{7}{4} -x[/latex] x/2+1=7/4-x x+2=7/2-2x x=7/2-2x-2 x= -2x+3/2 x+2x=3/2 3x=3/2 x=3/2*3 x=3/6 x=1/2 3 1/3x+8=4 2/5x-8 [latex] frac{3*3+1}{3} x+8=4 frac{2}{5} x-8[/latex] [latex] frac{9+1}{3} x+8=4 frac{2}{5} x-8[/latex] 10/3x+8=4 2/5x-8 [latex] frac{10}{3} x+8= frac{4*5+2}{5} x-8[/latex] [latex] frac{10}{3}+8= frac{20+2}{5} x-8[/latex] 10/3x+8=22/5x-8 50x+120=66x-120 120=66x-120-50x 120=16x-120 120+120=16x 240=16x 240/16=x 15=x x=15