Answer:
2r
Step-by-step explanation:
r+3r_=6r
The left side would have to equal 6r
right now it is 4r
by adding 2r it would equal 6r making the equation true.
Hope this helps :)
Answer:
2r
Step-by-step explanation:
r+3r+_=6r
Let's simplify this first. Subtract (r + 3r), or 4r, from both sides, obtaining
0 + _ = 2r
Then the quantity 2r, when placed in the blank, makes the equation true.
