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→Sub-numbering with {{cmd|startsubformulas}}
Equation~(\in[eq:v]) tells the final velocity after time~$t$ and equation (\in[eq:h]) tells the distance travelled in time~$t$.
</context>
A second solution is to specify two arguments to {{cmd|NR}} using {{cmd|NR|2=[+][eq:refa]}}, {{cmd|NR|2=[+][eq:refb]}}, … instead:
<context source=yes>
\setuplayout[scale=0.8,width=13cm]
\startplaceformula
\startformula \startalign
\NC v \NC = u + at \NR[+][eq:v]
\NC h \NC = ut + \frac12 gt^2 \NR[+][eq:h]
\stopalign \stopformula
\stopplaceformula
Equation~(\in[eq:v]) tells the final velocity after time~$t$ and equation (\in[eq:h]) tells the distance travelled in time~$t$.
</context>
instead of {{cmd|placeformula}} and numbering the subformulas using {{cmd|NR|2=[+][a]}}, {{cmd|NR|2=[+][b]}}, … instead: