Question
Answer
$$x+x\cdot2-5+x\cdot2-5+3=5x-7$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x+x\cdot2-5+x\cdot2-5+3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x+x\cdot2-5+2x-2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}3x-5+2x-2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}5x-7\end{aligned} $$ | |
| ① | Combine like terms: $$ 2x \color{blue}{-5} + \color{blue}{3} = 2x \color{blue}{-2} $$ |
| ② | Combine like terms: $$ \color{blue}{x} + \color{blue}{2x} -5 = \color{blue}{3x} -5 $$ |
| ③ | Combine like terms: $$ \color{blue}{3x} \color{red}{-5} + \color{blue}{2x} \color{red}{-2} = \color{blue}{5x} \color{red}{-7} $$ |
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