0\; \; \to \; \; |x-5|=x-5\\\\|x-7|+|x-5|-4=7-x+x-5--4=-2" alt="A10.\; \; x\in (5,5\; ;\; 6)\; \; \Rightarrow \; \; x-7<0\; \; \to \; \; |x-7|=-(x-7)=7-x\; ;\\\\x-5>0\; \; \to \; \; |x-5|=x-5\\\\|x-7|+|x-5|-4=7-x+x-5--4=-2" align="absmiddle" class="latex-formula">
