[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
- Simplify the expression ⇨ 4(3z+9)-(5z+7)
[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex]4 \sf \left( 3z+9 \right) -(5z+7)[/tex]
Use the distributive property to multiply 4 by 3z+9.
[tex] \sf12z+36-\left(5z+7\right) [/tex]
Remove the brackets of 5z + 7 & put the subtraction symbol (minus) accordingly.
[tex] \sf12z+36-5z-7 [/tex]
Combine 12z and -5z to get 7z.
[tex] \sf7z+36-7 [/tex]
Subtract 7 from 36 to get 29.
[tex] \boxed{ \boxed{\bf7z+29 }}[/tex]
