The foundational concept of algebra is to use the alphabetical letters to find the unknown number.
Algebra is the concept that uses the alphabetical letters such as x, y, z, etc. to calculate the unknow numbers. here the letters are also called as variables. The values that are known in the expression as termed as constants.
The general operations performed on the algebra is
- Addition = x + y
- Subtraction = x - y
- Multiplication = x * y
- Division = x / y
Here the alphabets x and y are called variables.
Order of operations:
The order of operation in algebra is given as follows
- Perform all the operations inside the brackets
- Perform the operations on roots and exponents
- Perform all the division and multiplication operations moving from left to right
- Perform all the addition and subtraction operations from left to right.
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Answer:
The sum is

Step-by-step explanation:
Assuming we are finding the sum of :
3e + 7 - e and 2e + 10 + 2e -3
Then we set up the addition as follows:

We group similar try to get:

We now combine the similar terms to obtain:

Therefore the sum is

Answer:
Choice C correct answer.
Step-by-step explanation:
From the question statement, we observe that
d=6 in
r=d/2
so, r=6/2=3 in
The formula to find area is
A = πr²
Putting the value of radius, we get
A = π(3)²
A= 9π in²
Answer:
78 0: )
Step-by-step explanation:
(A) .05 of a meter, or 1/20 of a meter.
(B)5 centimeters
(C) 1/20 of a ton
(D) 100 pounds