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Q3.

Expert-verifiedFound in: Page 400

Book edition
Common Core Edition

Author(s)
Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages
183 pages

ISBN
9780547587776

**Solve the equation Check your solution.**

$4\left(7-2t\right)=4$

The solution of our given equation would be $t=3$.

An equation: $4\left(7-2t\right)=4$

To solve our given equation, we use opposite operations as shown below:

$\begin{array}{c}4\left(7-2t\right)=4\left(\text{Given equation}\right)\\ \frac{4\left(7-2t\right)}{4}=\frac{4}{4}\left(\text{Dividing both sides by 4}\right)\\ 7-2t=1\\ 7-7-2t=1-7\left(\text{Subtracting 7 from both sides}\right)\\ -2t=-6\\ \frac{-2t}{-2}=\frac{-6}{-2}\text{\hspace{0.33em}\hspace{0.33em}}\left(\text{Dividing both sides by}-2\right)\\ t=3\end{array}$

Let us verify our answer by substituting $t=3$ in our original equation.

$\begin{array}{c}4\left(7-2t\right)=4\left(\text{Given equation}\right)\\ 4\left(7-2\left(3\right)\right)=4\text{\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}}\left(\text{Substituting}t=3\right)\\ 4\left(7-6\right)=4\\ 4\left(1\right)=4\\ 4=4\end{array}$Since both sides of equation are equal, therefore, $t=3$ is a solution of our given equation.

The solution of our given equation would be $t=3$.

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