n(1-R)L is an expression: it is not a formula.
Replace each variable in the expression by its value and then find the value of the expression.
As an expression it is: 5(p+r) which means 5p+5r
the sum of p and r is p + r5 times this sum is 5 × (p + r) = 5(p + r)Multiplication is not written as it looks like an 'x' - it is implied by two things next to each other.The brackets are needed as the addition needs to be done before the multiplication.
Grumace
u r sad
n(1-R)L is an expression: it is not a formula.
It means 'I have not actually done it but I am going to do it so soon that you can go ahead and act as if I have done it'. A rather meaningless phrase.
x = (r + st)/r is the expression that represents x in the equation rx - st = r.
It is a positive expression of something good,well done,a good surprise.
It is: r/15
-180
If you mean: -12.75+4.25x then it is 4.25(-3+x)
35
35/r 35 ÷ r
r and s can be any values such that r + s = 39. The answer is indeterminate since there are many solutions for that expression. If the new expression is included, then there must be some r and s for the problem.
It is the expression: 342 + f + r