Question

4x-5/6=12 8x-3x=15.5 2.4*x=6*2.5

Answer 1

4x-5/6=12

如果是4x-(5/6)=12

则4x=12+5/6=77/6

x=(77/6)÷4=77/24

如果是(4x-5)/6=12

则4x-5=12*6=72

4x=72+5=77

x=77÷4=77/4

8x-3x=15.5

(8-3)x=15.5

5x=15.5

x=15.5÷5=3.1

2.4*x=6*2.5

x=6*2.5÷2.4=25/4