Answer:
x=2
Step-by-step explanation:
x=2 in the equation 3x+5=19-4x
Answer:
the answer to your question is
2n + 20
Answer:
So, 
Step-by-step explanation:

To evaluete this expression we apply exponential property

IF any expression has exponent 0 then the value is 1 always
for example, 

because exponent is 0
So, 
X + 3 because in math two negatives equal a positive
"Product" signifies multiplication, and "half" means divide by two (or multiply by 1/2). So half the product of b and c is (bc)/2 or (1/2)(bc).