Solve the equation. Check your solution.
-2(r+4)=-31
r=
3 answers
r= -7
no
Apologies for the mistake.
Let's solve the equation step by step.
-2(r + 4) = -31
First, distribute -2 to (r + 4):
-2r - 8 = -31
Next, add 8 to both sides to isolate the term with -2r:
-2r = -31 + 8
-2r = -23
Finally, divide both sides by -2 to solve for r:
r = -23 / -2
r = 11.5
To check if the solution is correct, substitute r = 11.5 back into the original equation:
-2(11.5 + 4) = -31
-2(15.5) = -31
-31 = -31
Since both sides of the equation are equal, the solution r = 11.5 is correct.
Let's solve the equation step by step.
-2(r + 4) = -31
First, distribute -2 to (r + 4):
-2r - 8 = -31
Next, add 8 to both sides to isolate the term with -2r:
-2r = -31 + 8
-2r = -23
Finally, divide both sides by -2 to solve for r:
r = -23 / -2
r = 11.5
To check if the solution is correct, substitute r = 11.5 back into the original equation:
-2(11.5 + 4) = -31
-2(15.5) = -31
-31 = -31
Since both sides of the equation are equal, the solution r = 11.5 is correct.