A:两边都乘以 43 ,得 43x−12=8
B:两边都乘以4,得 3×(43x−12)=24
C:用分配律去括号,得 x−9=6
D:小括号内先通分,得 34×4x−363=6
请回答下列问题:
—How many people were there at the meeting?
—_______.
52-7=____8+32=____28+10=____30-7=____74+26=____
18+3=____100-92=____64-9=____40+10=____ 75-5=____
读课文《最后一课》,“忽然教堂的钟敲了十二下”中“忽然”的表达作用是( )