Answer :
The correct equation to use is
[tex]$$3(x+7)=84.$$[/tex]
We solve for [tex]$x$[/tex] as follows:
1. Divide both sides by 3:
[tex]$$
x+7=\frac{84}{3}=28.
$$[/tex]
2. Subtract 7 from both sides:
[tex]$$
x=28-7=21.
$$[/tex]
Thus, the solution is
[tex]$$x=21.$$[/tex]
[tex]$$3(x+7)=84.$$[/tex]
We solve for [tex]$x$[/tex] as follows:
1. Divide both sides by 3:
[tex]$$
x+7=\frac{84}{3}=28.
$$[/tex]
2. Subtract 7 from both sides:
[tex]$$
x=28-7=21.
$$[/tex]
Thus, the solution is
[tex]$$x=21.$$[/tex]
