Solve the following equations and verify your answer.
$x - 7 = 6$

Hint: In the question we are asked to solve the equation and verify the answer. For this, we have to find the value of $x$ . First, in the given equation we have to add both sides with $7$ . The addition is the sum of given two or more than two numbers, or variables and in addition, if we sum the two or more numbers then we obtain a new frame of the number will be found and in our case that is the required answer.

Complete answer:
Since given that the equation $x - 7 = 6$ and then we need to find the value of the unknown variable $x$, so we will make use of the basic mathematical operations to simplify further.
now Turing the variables on the left-hand side and also the numbers on the right-hand side we get $x - 7 = 6 \Rightarrow x = 6 + 7$ while changing the values on the equals to, the sign of the values or the numbers will change.
Or we can also able to make use of the addition and subtraction operation as, add the value $7$ on both sides then we get $x - 7 + 7 = 6 + 7$. Now equals values with opposite signs get cancel each other, thus we get $x = 6 + 7$
Now making use of the addition operation we have, $x = 6 + 7 \Rightarrow x = 13$ which is a positive number since it has the positive sign as $x = + 13$
We usually do not denote the positive sign for the numbers, but we always denote the negative symbols for sure like $x = - 13$

Note:
The two operations which we have not used are multiplication and division operations. The process involved in multiplication are multiplicand and multiplier. Division is called as a inverse process of multiplication and here we have two terms dividend and divisor. Hence using simple operations, we solved the given problem.