Respuesta :
X=10
Make it into an equation.
3x+10=40
Solve the equation
-10 from each side leaving you with 3x=30 divide each side by three to get x by itself 30/3=10
Make it into an equation.
3x+10=40
Solve the equation
-10 from each side leaving you with 3x=30 divide each side by three to get x by itself 30/3=10