Question

Solve the inequality. Type your answer using interval notation.
4|2x+7|-20≤0

Answer 1

since its an absolute value, dont i have to do something with 2x+7<= to 5 and -5?

Answer 2

Would it be [-6,-1]?

Answer 3

hold the phone

Answer 4

\[|2x+7|\leq 5\]
\[-5\leq 2x+7\leq 5\]
\[-12\leq 2x\leq -2\]
\[-6\leq x\leq -1\]

Answer 5

so yes, it would be
\[[-6,-1]\]

Answer 6

Thanks