Example

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

Question

$$(7a)+(8a)$$

Answer

15*a

Solution


Remove parentheses.
\[7a+8a\]
Simplify.
\[15a\]
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