Question

1+r/9=0 this is a 2 step equation how do you solve it?

Answer 1

1 + r = 0
9 1
1 + r = 0
- 1 - 1
r = -1

Answer 2

so solve for r
try to isolate the placeholder

1+r/9=0
subtract 1 from both sides
r/9=-1
multiply both sides by 9 to clear fraction (because r/9 times 9/1=r/1 times 9/9=r)
r=-9

tada