Q23. - Algebra 1

Question

Solve each equation.

$0=21+3x$

Step-by-Step Solution

Answer

The required solution is represented by $x=-7$.

Step 1. Determine the method which can be used to determine the required solution.

The equation that represents the value of x will represent the required solution.

Step 2. Determine the value of x .

Perform subtraction of 21 on both sides of the provided equation.

$$\begin{gathered} -21=21+3x-21 \\ -21=3x \end{gathered}$$ 

Perform division of 3 on both sides of the equation.

$\begin{array}{c}\frac{-21}{3}=\frac{3x}{3}\\ -7=x\\ x=-7\end{array}$

Step 3. Write the conclusion.

The obtained equation $x=-7$ is the required solution.