第97页

信息发布者:
8+6=14,8x-10=75
$8x-10=75$
9
52
7
16
$32+5x$
$\begin{aligned}解:4x+19.5&=21.5\\4x&=21.5-19.5\\4x&=2\\x&=0.5\end{aligned}$
$\begin{aligned}解:2.5x+x&=7×2.5\\3.5x&=17.5\\x&=17.5÷3.5\\x&=5\end{aligned}$
$\begin{aligned}解:7x-0.6×2.8&=1.82\\7x-1.68&=1.82\\7x&=1.82+1.68\\7x&=3.5\\x&=0.5\end{aligned}$
×
×
×

C
A
D
C