Question

1. Add the algebraic expressions in each of the follow 7y and -3y​

Answer 1

Answer:

To add the algebraic expressions, follow the steps below: Step 1: Sort out all the like terms based on the variables, i.e., the term consisting of the same variables are grouped. Step 2: Addition is performed on all the grouped terms with the same variables by adding the coefficients and should be written with a single coefficient term. Step 3: Similarly, for all the like terms, the operations are to be done.

Step-by-step explanation:

Answer 2

Answer:

Given expressions are: 2x+9y−7z, 3y+z+3x and 2x−4y−z

Adding the given expressions:

(1).Verticalmethod     2x+9y−7z+ 3x+3y+z+ 2x−4y−z    7x+8y−7z...(i)  

(2).Horizontalmethod2x+9y−7z+3x+3y+z+2x−4y−z⇒7x+8y−7z..(ii)

We can see that, (i)=(ii)

Hence, both horizontal and vertical methods give the same answer.