solve the absolute value 3[z+7]=-12
Two is the answer because 3+2=5+7=12.So the missing number is 2.
\(3|z+7|=-12\\|z+7|=-4\\\\z+7=-4\\z+7=4\\\\z=-11\\z=-3\\\\\\\sf{Plug~them~to~test~if~the~solution~is~correct.}\\\\ 3|-3+7|=-12 \\ 3 (4) eq -12 \\ \\ 3 |-11+7|=-12\\ 3 (4) eq-12 \\ \\ \\ \boxed{\sf{There~is~no~solution.}}\)
