3x+7=-5 3x= -5-7 3x=-12 /·[latex] frac{1}{3} [/latex] x=-4 8x+4=-5x+16 8x+5x=16-4 13x=12/ ·[latex] frac{1}{13} } [/latex] x=[latex] frac{12}{13} [/latex] 2x+6=-4 2x=-4-6 2x=-10/÷2 x=-5 5-x=2x+23 5-23=2x+x 3x=-18/÷3 x=-6 2a-3=a+1 2a-a=1+3 3a=4/÷3 a=1[latex] frac{1}{3} [/latex] 4b+3=3b-4 4b-3b=-4-3 b=-7 7+3c=5+2c 3c-2c=5-7 c=-2 5d+2=3d 5d-3d=-2 2d=-2/÷2 d=-1 6e-7=9e+5 6e-9e=5+7 -3e=12/÷(-3) e=-4 6f-1=f+2 6f-f=2+1 5f=3/÷5 f=[latex] frac{3}{5} [/latex] 11-4z=7 11-7=4z 4z=4/÷4 z=1 8+12g=14 12g=14-8 12g=6/·[latex] frac{1}{12} [/latex] g=[latex] frac{1}{2} [/latex] 2x-14=10-4x 2x+4x=10+14 6x=24/÷6 x=4 2(x-1)=10 2x-2=10 2x=10+12 2x=12/÷2 x=6 0,5(2-x)=1 1-[latex] frac{1}{2} [/latex]x=1 1-1=[latex] frac{1}{2} [/latex]x 0=0,5x/÷0,5 x=0
