pomoże ktoś? daje 20 puktow. Jakby co chodzi o zadanie 3. Proszę o pomoc:-)

a.  2x-3+x=8 2x+x=8+3 3x=11/:3 x=3 i 2/3 b. 3*5x-7=3 15x-7=3 15x=3+7 15x=10/:15 x=2/3 c. 3x-2x+3=1 3x-2x=1-3 x=-2 d. [4x+x]/4 =4 5x/4=4 /[*4] 5x=16/[:5] x=3 i 1/5 e. [8-2x]/2 = 10/[*2] 8-2x=20 -2x=20-8 -2x=12/[:-2] x=-6 f. 3/4x-5+1/4x=10 x-5=10 x=10+5 x=15

zad3 a) 2x-3+x=8 2x+x=8+3 3x=11 /:3 x=[latex] frac{11}{3} =3frac{2}{3}[/latex] b) 3*5x-7=3 15x=3+7 15x=10/:15 x=[latex] frac{10}{15}= frac{2}{3} [/latex] c) 3x-2x+3=1 x=1-3 x=-2 d) [latex] frac{4x+x}{3}=4/*3 [/latex] 5x=12/:5 x=[latex] frac{12}{5} =2 frac{2}{5} [/latex] e) [latex] frac{8-2x}{2}=10 [/latex] 8-2x=2*10 8-2x=20 2x=-20+8 2x=-12/:2 x=-6 f) [latex] frac{3}{4}x-5+ frac{1}{4}x=10 [/latex] x=10+5 x=15