Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48
You don't have a sign between b and c in the equation, so I cannot help you with the last operation
Answer:
Step-by-step explanation:
Given
See attachment
From the attachment A and B are vertically opposite.
This implies that:
Substitute values for A and B
Collect Like Terms
Solve for x
Substitute 20 for x in
Suppose that you have a stack of pennies. If you want to know without counting whether there is an odd or even number of pennies, then you have to split them into two parts, for example, placing one coin left and one coin right.
If the number of pennies is even, then no coins will left, if the number is odd, then one coin will be extra.