Question

28 + 3r = 10r
Ye im to lazy to actually work it out

Answer 1

28 + 3r = 10r

Isolate 28 by taking off 3r from both sides:

28 = 7r

Flip to make the equation easier to read:

7r = 28

Divide both sides by 7 to get the value of r:

r = 4