Weather I think I'm not sure
Answer:
x= -31
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given




Required
The number of each coin
The total coins can be represented as:


So, the worth of the coin is:

The equations to solve are:


Make d the subject in: 

Substitute
in 


Collect like terms


Solve for q


Substitute
in 


So:


Simplified would be 4xy + 3x^2 + 6x