A.3x+1.9=0 | B.![]() ![]() | C.x+1.9>2.5 | D.8x+y=19 |
A.2x-x=6 | B.2x+x=6+6 | C.2x+x=6 | D.2x-6=x+6 |
A.3m+2 | B.3m | C.3m+1 | D.3m﹣1 |
A.![]() | B.![]() | C.![]() | D.![]() |
A.1 | B.2 | C.3 | D.4 |
A.30a=20b | B.3a-5=2b-5 | C.3a+2=2b+3 |
A.50 | B.28 | C.21 | D.19 |
A.少15千克 | B.多15千克 | C.少20千克 | D.多20千克 |
A.多8 | B.少8 | C.少40 | D.多32 |
A.10 | B.12 | C.14 | D.114 |