1. a) b) c) 5x+3=3x+1/-3x 5(2x-2)=2(3x-3) [latex] frac{2x}{5} [/latex] +1=[latex] frac{6x}{10}[/latex]/[latex] frac{5}{1} [/latex] 2x+3=1/-3 10x-10=6x-6/+10 2x+1=[latex] frac{6x}{2} [/latex] 2x=-2/:2 10x=6x+4/-6x 2x+1=3x/2x x=-1 4x=4/:4 x=1 x=1 2. a) b) c) 3x+4>x+2/-x 5x+1=7x+3/-5x 2(x-1)+3x-1<0 2x+4>2/-4 1=2x+3/-3 2x-2+3x-1<0 2x>-2/:2 2x=-2/2 5x-3<0/+3 x>-1 x=-1 5x<3/:5 x<[latex] frac{3}{5} [/latex]
1. a) 5x + 3 = 3x +1 5x - 3x = - 3 + 1 2x = -2/: 2 x = - 1 b) 5(2x - 2) = 2(3x-3) 10x - 10 = 6x - 6 10x - 6x = 10 - 6 4x = 4/ :4 x = 1