Example

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

Question

$$13^{\circ}-(-4)^{\circ}$$

Answer

13*deg+4*deg

Solution


Remove parentheses.
\[13deg-(-4deg)\]
Remove parentheses.
\[13deg+4deg\]
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