Question

How do you solve $ 6a - 2a = - 36 $ ?

Answer 1

Hint: In the question, we are provided with a linear equation with only one variable. We have to find the value for the variable “a”. Firstly, solve the left-hand side by subtraction and then take that constant onto the other side by dividing it with the constant.

Complete step by step solution:
In this question, we are given a linear expression with taking “a” as its variable. And we have to find the value of “a”.
For such questions, just keep in mind to take all the constants to one side probably to the right-hand side and the variables to the other side conveniently should be left-hand side.
For our knowledge, constants are the number in the given expression $ - 36 $ is the constant and variable is the alphabets here “a” is the variable.
Solving the expression,
 $ 6a - 2a = - 36 $
 $ 4a = - 36 $
Dividing the expression by $ 4 $
 $ a = \dfrac{{ - 36}}{4} = - 9 $
So, the solution is $ a = - 9 $
So, the correct answer is “ $ a = - 9 $ ”.

Note: Linear equations are quite easier to solve. The difficulty level is when we have to find two variables to solve. Just keep in mind to have constants on right-hand sides and the variables to the left-hand side. solve the simple calculations carefully.