Which expression is equivalent to −30+(−40)+(−70) ?
1 answer:
You might be interested in
Equal expressions can be taken equal to an another variable. The system of equations representing the equation is
When you raise a number with an exponent, there comes a result.
Lets say you get
Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows
Some properties of logarithm are:
Log with base e = 2.71828... is written as simply.
Log with base 10 is written as simply.
The given equation is:
Adding on both the sides, we get:
The, we get two equations as:
This is the needed system of equations.
Learn more about logarithms here: