A.30+20=50 | B.3x+10 | C.4x>16 | D.3x=21 |
A.5a+1=13 | B.1.5x+7 | C.2.1b+b=6.6 | D.6y+7=4y+10 |
A.2x=0.9 | B.3x+4.6=7.2 | C.2.8-1.3=1.5 | D.6x-0.5=0 |
A.4x+6 | B.5x>16 | C.2x+5×8=100 |
A.2x+9<21 | B.7x=8.1 | C.9.5=5×1.9 | D.6x﹣36 |
A.画图 | B.计算 | C.转化 |
A. | B. | C. | D. |
A. | B. | C. | D. |
A.b-m<11 | B.2×21=42 | C.0.12n=24 |
A.3x+6=120 | B.120-3x=6 | C.3x-6=120 | D.3x=120-6 |