Answer:
x^(d+18)
Step-by-step explanation:
using the law of indices
you must add the powers
Answer:
No Solution
Step-by-step explanation:

Expand:


Add 5 to both sides:


Subtract 4x from both sides:


No solution as this is false.
Answer:
15=0 not a real number
Step-by-step explanation:
8+9p=9p-7
+7 +7
15+9p=9p
-9p -9p
15=0
Answer: 19
Reasoning: the equation is 7 + (6 x 2) = 19