Question

The given equation is either linear or equivalent to a linear equation. Solve the equation.

$3x+4=7$

Short answer

The solution of linear equation is$x=1$

Step-by-step solution

Step 1. Solving a linear equation.

We solve a linear equation by changing it to an equivalent equation with all terms that have the variable x on one side and all constant terms on the other.

Step 2. Analyze the given expression.

Given

$3x+4=7$

Step 3. Solve.

$\begin{array}{l}3x+4=7\\ \Rightarrow 3x=7-\mathrm{4.........}\left[\text{subtract4}\right]\\ \Rightarrow 3x=3\\ \Rightarrow x=\frac{3}{3}\mathrm{...............}\left[\text{divideby3}\right]\\ \Rightarrow x=1\end{array}$

So, the solution of given equation is$x=1$