What should be done to both sides of the equation to find the value of r in r + 11 = -17

To find the value of r in the equation r + 11 = -17, you need to isolate the variable r. To do this, you should subtract 11 from both sides of the equation.

By subtracting 11 from both sides, the equation becomes:
r + 11 - 11 = -17 - 11

Simplifying the equation further, it becomes:
r = -17 - 11

Finally, performing the addition on the right side of the equation, you get:
r = -28

Hence, the value of r in the given equation is -28.

To find the value of r in the equation r + 11 = -17, you need to isolate the variable r. Here are the step-by-step instructions:

Step 1: Subtract 11 from both sides of the equation:
r + 11 - 11 = -17 - 11
This simplifies to:
r = -28

Therefore, the value of r in the equation r + 11 = -17 is -28.

To solve the equation r + 11 = -17 and find the value of r, we need to perform the same operation on both sides of the equation to maintain equality. The general rule is that whatever operation we apply to one side, we must apply it to the other side as well.

In this case, we want to isolate the variable r, which is being added to 11. To undo the addition of 11, we need to subtract 11 from both sides of the equation.

(r + 11) - 11 = (-17) - 11

By subtracting 11 from both sides, we get:

r = -17 - 11

Now we can simplify the right side:

r = -28

Therefore, the value of r in the equation r + 11 = -17 is -28.