3(x-3)-21=0how would i solve this

Question

asked Oct 2, 2023 69.4k views

1 Answer

George Findulov · Answer 1 · 2023-10-07T01:58:44+0000

Solution:

The equation is given below as

Step 1:

Open up the parenthesis using the distributive law

$\begin{gathered} 3(x-3)-21=0 \\ 3(x)-3(3)-21=0 \\ 3x-9-21=0 \\ 3x-30=0 \end{gathered}$

Step 2:

Add 30 to both sides

$\begin{gathered} 3x-30=0 \\ 3x-30+30=0+30 \\ 3x=30 \\ (3x)/(3)=(30)/(3) \\ x=10 \end{gathered}$

Hence,

The value of x is

$\Rightarrow x=10$