Question

What is the value of r in the equation 2(2r+8)=3r+16

Answer 1

2×2 gives your 4 and 2×8 gives you 16 so than it would be 4r+16=3r+16 than minus 3r from both sides. r+16=16 minus 16 from both side giving you r=0.

Answer 2

2 * (2r+8) = 3r + 16

4r + 16 = 3r + 16

4r = 16 - 16

4r = 0

r = 0