Question

How do you solve, not just the answer PLEASE -2r-4=3r+16

Answer 1

$-2r-4=3r+16\ \ \ |+4\\\\-2r=3r+20\ \ \ |-3r\\\\-5r=20\ \ \ \ |:(-5)\\\\r=-4$

Answer: r = -4

Answer 2

Isolate the variable "r". Add 2r to both sides, while subtracting 16 from both sides. You will be left with -20=5r. Then you need to divide 5 from both sides. Your answer will be -4=r.