Sure, let's solve the equation step by step:
-2(r+7) = -33
First, let's distribute the -2 on the left side of the equation:
-2r - 2(7) = -33
Simplifying further:
-2r - 14 = -33
Now let's isolate the variable by adding 14 to both sides:
-2r = -33 + 14
-2r = -19
Finally, divide both sides by -2 to solve for r:
r = -19 / -2
r = 9.5
Now let's check our answer by substituting r back into the original equation:
-2(9.5 + 7) = -33
-2(16.5) = -33
-33 = -33
Since both sides are equal, r = 9.5 is the correct solution!