Answer:
It's the first one
Step-by-step explanation:
Because 2M means you are multiplying all the values of M with 2
Answer:

Step-by-step explanation:
First, distribute all terms

Get all terms with R onto the same side

Factor out the R

Divide by (T-S) to isolate R

6's x = 0 and 4's x = 3/2 (put 3 over 2 so it marks as a fraction)
plz mark brainliest