7 is just adding.
8 is counting by odd numbers.
9 is a rotation
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Which steps would you use to solve this equation? p+7=12

We can solve this equation in one step only, and this is the step:-
Subtract 7 from both sides
p=12-7
p=5
<h3>Good luck.</h3>
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For the first one t could be a volcano that’s slowly caving in over time, and for the 2nd one it could be a store that’s selling something, and the cost per person was bigger when there was less people, but since more people came they didn’t have to charge as much ^ ^
Answer:
x=ym−4
Step-by-step explanation:
y=(4+x)m
Here we have one equation with three unknowns. This cannot be "solved". We can only express one variable in terms of the other two.
Let's isolate x.
Divide through by m
ym=4+x
x=ym−4
(I really hope this helps)
2 + x = -19 <=> x = -19 -2 = -21