Question

Solve The Following Equations $5x-2=18$ and check your answers.

Answer 1

Step 1. Solution the given equation.

Solve the given equation by Rearranging and combining the like terms:

$\begin{array}{l}5x-2=18\\ \Rightarrow 5x=18+2\\ \Rightarrow x=\frac{20}{5}\\ \Rightarrow x=4\end{array}$

Step 2. Verification.

Verify the result by substituting $x=4$in the given equation:

$\begin{array}{l}\mathrm{LHS}=5\times 4-2\\ =20-2\\ =18\\ =\mathrm{RHS}\end{array}$

Hence the solution of $5x-2=18$ is $x=4$ and it is verified.