Answer:
6
Step-by-step explanation:
i guess
The solution for equation is x = -6
<em><u>Solution:</u></em>
<em><u>Given equation is:</u></em>

We have to solve the equation
According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right
Therefore, solve for brackets in given equation

Solve for terms in left hand side of equation

Move the variables to one side and constants to other side

Thus the solution for equation is x = -6
Answer:
Step-by-step explanation:
Use the formula Sum = (a + L)*n/2
The tricky part is n. That's the number of terms between 1 and 99 inclusive.
n = 99 -1 + 1 = 99
n = 99
a = 1
L = 99
Sum = (1 + 99)*99 / 2
Sum = (100)*99/2
Sum = 4950