Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$a - 2 \frac { - 2 } { 7 } + ( \frac { - 3 } { 5 } )$$

Answer

10*a-31/35

Solution


Remove parentheses.
\[10a-\frac{2}{7}-\frac{3}{5}\]
Collect like terms.
\[10a+(-\frac{2}{7}-\frac{3}{5})\]
Simplify.
\[10a-\frac{31}{35}\]
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