Solve the equation.
-10r + 7 = 57
A)40
B)44
C)1
D)5

Question

Quizplus · Accepted Answer

To solve for r, we need to isolate the variable on one side of the equation.

First, we can simplify by subtracting 7 from both sides:

10r + 7 - 7 = 57 - 7

Simplifying further:

10r = 50

To get r by itself, we can divide both sides by 10:

r = 5

Therefore, the answer is D)5. To solve for r, we need to isolate r on one side of the equation.

First, we can simplify the left side of the equation by subtracting 7 from both sides:

10r + 7 - 7 = 57 - 7

10r = 50

Next, we can isolate r by dividing both sides by 10:

r = 5

Therefore, the solution to the equation is r = 5, which corresponds with choice D.

Solve the Equation. -10r + 7 = 57