4x+24-x=0 => 3x+24=0 => 3(x+8)=0/:3 => x+8=0 => x=-8" alt="631) 4(x+6)=x => 4x+24-x=0 => 3x+24=0 => 3(x+8)=0/:3 => x+8=0 => x=-8" align="absmiddle" class="latex-formula">
24+4x+x=0 => 24+5x=0 => 5x=-24/:5 => x=-4,8" alt="632)-x=4(6+x) => 24+4x+x=0 => 24+5x=0 => 5x=-24/:5 => x=-4,8" align="absmiddle" class="latex-formula">
-21+14x=-6x-1 => 14x+6x=-1+20 => 20x=20/:20 => x=1" alt="633)7(-3+2x)=-6x-1 => -21+14x=-6x-1 => 14x+6x=-1+20 => 20x=20/:20 => x=1" align="absmiddle" class="latex-formula">