The answer is 14x.
You always have to do whats in the parenthesis first. In this case you would do 7 + x = 7x. Then, you add this 7x to the other 7 x. 7x+7x=14x.
Mode is the total average median is the middle number
The remainder of the polynomial equation is -49
<h3>What is a remainder of a polynomial equation?</h3>
The remainder of a quantity in an algebraic expression of a polynomial equation is the remaining amount of the quantity left and can not be divisible by the divisor.
From the given information, we are to find the remainder of the given algebraic equation:

Using the long division method, we have:

Divide by
, we have:

Divide by
, we have:

Learn more about finding the remainder of a polynomial equation here:
brainly.com/question/24978997
#SPJ1