8x-6=50解: x=
3x+6=10.5解:x=
2.9+x=2.9解: x=
4x-2=18解:x=
2.9x=2.9
解:x=
4x-0.8=1.6解: x=
32+6x=50解: x=
x÷3=60
2x-28÷2=4
解: x=
2.5x+7x=19
2x-3=5解: x=
x-12×4=8