Question
Answer
$$5a+4-(5a+3)=1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5a+4-(5a+3)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5a+4-5a-3 \xlongequal{ } \\[1 em] & \xlongequal{ } \cancel{5a}+4 -\cancel{5a}-3 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 5a+3 \right) = -5a-3 $$ |
| ② | Combine like terms: $$ \, \color{blue}{ \cancel{5a}} \,+ \color{green}{4} \, \color{blue}{ -\cancel{5a}} \, \color{green}{-3} = \color{green}{1} $$ |
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