Question

请解出下列四道方程13.2x+9x=33.35.4x+x=12.88x-3x=105x-0.36x=16

Answer 1

13.2x+9x=33.3

22.2x=33.3

x=333/222

5.4x+x=12.8

6.4x=12.8

x=2

8x-3x=105

5x=105

x=21

x-0.36x=16

0.64x=16

x=35