Example

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

Question

$$(x+11)+(x+7)$$

Answer

2*x+18

Solution


Remove parentheses.
\[x+11+x+7\]
Collect like terms.
\[(x+x)+(11+7)\]
Simplify.
\[2x+18\]
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