Question
Answer
$$4(7x-5)-13=28x-33$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4(7x-5)-13& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}28x-20-13 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}28x-33\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( 7x-5\right) $ $$ \color{blue}{4} \cdot \left( 7x-5\right) = 28x-20 $$ |
| ② | Combine like terms: $$ 28x \color{blue}{-20} \color{blue}{-13} = 28x \color{blue}{-33} $$ |
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