Answer
$2s+3t$
Work Step by Step
RECALL:
$\\\\$The distributive property:
$\\\\a(b+c)=ab+ac$.
$\\\\$Use this property to have:
$\\\\-(-2s-3t)
\\\\=-1(-2s-3t)
\\\\=-1(-2s)-(-1)(3t)
\\\\=2s-(-3t)
\\\\=2s+3t$
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