Pomożecie na jutro daje naj i 25pk 2x+6-4=18 -5x+4=26 1/3x-15=40 x+7/4=5 2x+3x+4=12 5-x=10 8+4x=5 12x-4x+3=7 plis pomocy

2x+2=18 2x=18-2 2x=16 x=8 -5x+4=26 -5x=26-4 -5x=22 5x=-22 x=-[latex] frac{22}{5} [/latex] [latex] frac{1}{3} [/latex]x-15=40 /*3 x-45=120 x=120+45 x=165 x+[latex] frac{7}{4} [/latex]=5 /*4 4x+7=20 4x=20-7 4x=13 /:4 x=3[latex] frac{1}{4} [/latex] 2x+3x+4=12 5x=12-4 5x=8 x=[latex] frac{8}{5} [/latex] x=1[latex] frac{3}{5} [/latex] 5-x=10 -x=10-5 -x=5 x=-5 8+4x=5 4x=5-8 4x=-3 x=-[latex] frac{3}{4} [/latex] 12x-4x+3=7 8x=7-3 8x=4 x=[latex] frac{4}{8} = frac{1}{2} [/latex]