Question

4(2x - 2) <_ 2 (x + 5)

Answer 1

$4(2x - 2) \leq 2 (x + 5) \\ 8x-8\leq2x+10\\ 6x\leq18\\ x\leq3$

Answer 2

$4(2x-2)\leq2(x+5)\\\\8x-8\leq2x+10\ \ \ \ \ |add\ 8\ to\ both\ sides\\\\8x\leq2x+18\ \ \ \ \ |subtract\ 2x\ from\ both\ sides\\\\6x\leq18\ \ \ \ \ \ |divide\ both\ sides\ by\ 6\\\\x\leq3\\\\x\in(-\infty;\ 3]$