# EX.2.1 Q1 Linear Equations in One Variable Solutions - NCERT Maths Class 8

Go back to 'Ex.2.1'

## Question

Solve the equation:

\[x- 2= 7\]

Video Solution

Linear Equations

Ex 2.1 | Question 1

## Text Solution

**What is known?**

Equations

**What is unknown?**

Value of the variable

**Reasoning:**

In an equation values of left-hand side (LHS) and right-hand side (RHS) are equal. The two sides of the equation are balanced. We perform mathematical operations so that the balance is not disturbed.

**Steps:**

\[x- 2= 7\]

Transposing (\(-2\)) to RHS we get:

\begin{align}x &= {\rm{7}} + {\rm{ 2 }}\\\text{ }\!\!~\!\!\text{ }x&=9\end{align}