Question 59657
Tell whether the given value of the varible is a solution of the equation.
       4x+13=-9-3(x+9);x=-7.
Let x=-7, if both sides equal it is a solution.  If not it's not.
4(-7)+13=-9-3(-7+9)
-28+13=-9-3(2)
-15=-9-6
-15=-15 
x=-7 is a soltuion!
Happy Calculating!!!