Evaluate
\frac{19\left(x+21\right)}{2}
Expand
\frac{19x+399}{2}
Graph
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\frac{\left(21+x\right)\times 19}{2}
Express \frac{21+x}{2}\times 19 as a single fraction.
\frac{399+19x}{2}
Use the distributive property to multiply 21+x by 19.
\frac{\left(21+x\right)\times 19}{2}
Express \frac{21+x}{2}\times 19 as a single fraction.
\frac{399+19x}{2}
Use the distributive property to multiply 21+x by 19.
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