Question

Solve the equation.

8 ( r + 1 ) = - 2 ( r - 44 )

Answer 1

r=8

Answer 2

4(r+1)=-r+44
4r+4=-r+44
5r=40
r=8

Answer 3

8(r+1)=-2(r-44)
8r+8=-2r+88 (then you add 2r to -2r which cancels it out and add 2r to 8r)
10r+8=88 (then you minus 8 to 88)
10r=80 (finally you divide)
r=8

Answer 4

the reason why you added -2r and 2r and not -2r-2r is because you want to do the inverse operation.Also simplifying each step makes it shorter.