Answer:
[tex]\huge \boxed{X=8}[/tex]
Step-by-step explanation:
The value of x is ⇒ 3x-9=x+7
Solve 3x-9=x+7
Add by 9 from both sides of equation.
[tex]\displaystyle 3x-9+9=x+7+9[/tex]
Simplify.
[tex]\displaystyle 3x=x+16[/tex]
Subtract by x from both sides of equation.
[tex]\displaystyle 3x-x=x+16-x[/tex]
Simplify.
[tex]\displaystyle 2x=16[/tex]
Divide by 2 from both sides of equation.
[tex]\displaystyle \frac{2x}{2}=\frac{16}{2}[/tex]
Finally, simplify to find the answer.
[tex]\displaystyle 16\div2=8[/tex]
X=8, which is our answer.
