Determine whether the given problem is an equation or an expression. If it is an

vestirme4 2021-09-30 Answered

Determine whether the given problem is an equation or an expression. If it is an equation, then solve. If it is an expression, then simplify.

\(\displaystyle\frac{{-{2}{x}}}{{7}}\),\(\displaystyle\frac{{-{x}}}{{21}}\),\(\displaystyle\frac{{-{5}{x}}}{{42}}\)

 

 

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Expert Answer

faldduE
Answered 2021-10-01 Author has 14392 answers

Step 1
\(\displaystyle-{\frac{{{2}{x}}}{{{7}}}}-{\frac{{{x}}}{{{21}}}}-{\frac{{{5}{x}}}{{{42}}}}\) is an expression because it is contains set of terms using the operation.
Step 2
Solve the above expression
\(\displaystyle\Rightarrow-{\frac{{{2}{x}}}{{{7}}}}-{\frac{{{x}}}{{{21}}}}-{\frac{{{5}{x}}}{{{42}}}}\)
\(\displaystyle\Rightarrow{\frac{{-{6}{\left({2}{x}\right)}-{2}{x}-{5}{x}}}{{{42}}}}\)
\(\displaystyle\Rightarrow{\frac{{-{12}{x}-{2}{x}-{5}{x}}}{{{42}}}}\)
\(\displaystyle\Rightarrow-{\frac{{{19}}}{{{42}}}}{x}\)

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