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第4页

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$\begin{aligned}解：x&=5.2-4.8\\x&=0.4\end{aligned}$

$\begin{aligned}解：x&=260+760\\x&=1020\end{aligned}$

$\begin{aligned}解：x&=2.73+7.27\\x&=10\end{aligned}$

$\begin{aligned}解：x&=32÷1.6\\x&=20\end{aligned}$

$\begin{aligned}解：x&=150×8\\x&=1200\end{aligned}$

$\begin{aligned}解：x&=36.9÷4.5\\x&=8.2\end{aligned}$

$\begin{aligned}解：x-12.4&=23.6\\x&=36\end{aligned}$

$\begin{aligned}解：3x&=120\\x&=40\end{aligned}$

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