Question
Answer
$$x\cdot2+15x+56x\cdot2+14x+49=143x+49$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x\cdot2+15x+56x\cdot2+14x+49& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x+15x+112x+14x+49 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}143x+49\end{aligned} $$ | |
| ① | $$ 56 x \cdot 2 = 112 x $$ |
| ② | Combine like terms: $$ \color{blue}{2x} + \color{red}{15x} + \color{green}{112x} + \color{green}{14x} +49 = \color{green}{143x} +49 $$ |
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