6x + 8 = 50
Our goal is to get the variable x on its own.
We can start by subtracting 8 from each side. (subtraction prop. of eq. lets us do this)
6x + 8 - 8 = 50 - 8
6x = 42
Now, we must divide each side by 6 to find the value of x.
6x ÷ 6 = 42 ÷ 6
x = 7
Fifty-seven x thirty-one = one-thousand, seven-hundred and sixty seven. I just guessed and checked. 57x31=1767
He could buy 12 postcards for $3.36.
and 8 letters for $3.36
The quotient is 
Explanation:
The expression is 
Now, reciprocal the term 
and convert ÷ to ×
Taking the common terms out, we get,
Factorizing each numerator and denominator, we get,
Multiplying the terms, we have,
Cancelling the common factors, we get,
Thus, the quotient is
1 is less than 3 and is an odd number
