Question

How do i solve -1=-3r +2r

Answer 1

Answer:R=-1

Step-by-step explanation: You would have to first do the math for the equation, then you would have to work in the "R" and given the answer is smaller than the equation itself we can tell that the "R" is a negative. So, if we add the -3 and the 2 we get 1,so we can say that the "R" are both equal to -1 then we put it in the equation. We get -1=1 we add the "R's" then get -1

Answer 2

To solve this, you need to isolate/get the variable "r" by itself in the equation:

-1 = -3r + 2r       Combine like terms(terms that have the same variable and power/exponent.)  The only like terms you can combine are -3r and 2r

-1 = -r       Divide -1 on both sides to get "r" by itself

$\frac{-1}{-1} =\frac{-r}{-1}$   (two negative signs cancel each other out and become positive)

1 = r   or   r = 1