Answer:
P = 3x + 7
Step-by-step explanation:
The perimeter (P) is the sum of the 3 sides of the triangle, that is
P = x + 5 + x + 4 + x - 2 ← collect like terms
= 3x + 7
we know that
Additive inverse: These are the number when added to original number , the result is 0
Let's assume additive inverse of 52 is x
so,
now, we can find x
so, additive inverse of 52 is -52..........Answer