1.-2×+3=10
2.2/3×+1=-8
求助啊,谢谢各位大哥姐!
1.-2×+3=10
2.2/3×+1=-8
求助啊,谢谢各位大哥姐!
-2x=10-3
-2x=7
x=7÷ (-2)
x=-3.5
2/3x+1=-8
2/3x=-8-1
2/3x=-9
x=-9÷ (2/3)
x=-9X3/2
x=-27/2
1. -2x=10-3
-2x=7
x=-7/2
2. 2/3x=-8-1
2/3x=-9
x=-9乘以3/2
x=-27/2
-2×+3=10
-2x=7
x=13.5
.
2/3×+1=-8
2/3x=9
x=13.5