9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=369-3x-4x=427+5x-7x=37x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x19.5-2x=27-5x 21+4x-x=36

问题描述:

9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=36
9-3x-4x=4
27+5x-7x=3
7x-9x+26=10
10+x=4+2x
26.6-3x=29.9-6x
14.6+3x=18.8+x
19.5-2x=27-5x
21+4x-x=36

x=5/7,x=15,x=8,x=6,x=1.1,x=2.1,x=2.5,x=5.