Question

Find the value of $$7x - 9 = 16$$

Answer 1

Hint: In question, equation is given which is a linear equation to solve this linear equation we have to compare it LHS with RHS, after comparing we will get the correct ans i.e. value of x.

Complete step-by-step answer:
Equation which is given is $$7x - 9 = 16$$ . This is a linear equation.
In this linear equation only one value is unknown, to find the unknown value, we need to equate this equation, equating equation means comparing LHS and RHS.
So,
$$\eqalign{
\Rightarrow & 7x - 9 = 16 \cr
\Rightarrow & 7x = 16 + 9 \cr
\Rightarrow & 7x = 25 \cr
\Rightarrow & x = \dfrac{{25}}{7} \cr} $$
So, the value of x is $$x = \dfrac{{25}}{7}$$

Note: To solve the linear equation we need to Simplify both sides of the equation. After solving both sides we got the answer. In the problem one variable linear equation was given which is simplest to solve.