解方程.7x-6-25=255x*3*5=2257x-2*4=4190-8x+28=465.6/x+2=1048/x-6=047+x-548-2x+5=4724/（27/x）=63x+6x+7=884x+3*9=4733+8x-6x=45（3+2）x=183x+28+2x=583（x+2.1)=10.5x+4.8-0.7=4.9

Answer 1

7x-6-25=25 7X=25+25+6=56 X=56/7 X=8
5x*3*5=225 5X=225/15 5X=15 X=3
7x-2*4=41 7X=41+8=49 X=7
90-8x+28=46 -8X=46-90-28=-72 X=9
5.6/x+2=10 5.6/X=8 8X=5.6 X=0.7
48/x-6=0 48/X=6 6X=48 X=8
47+x-5=0 X=5-47 X=-42
48-2x+5=47 -2X=47-48-5=-6 X=3
24/（27/x）=6 24*(X/27)=6 24X=6*27 X=27/4
3x+6x+7=88 9X=88-7=81 X=9
4x+3*9=47 4X=47-27=20 X=5
33+8x-6x=45 2X=45-33=22 X=11
（3+2）x=18 5X=18 X=18/5
3x+28+2x=58 5X=58-28=30 X=6
3（x+2.1)=10.5 3X+6.3=10.5 3X=4.2 X=1.4
x+4.8-0.7=4.9 X=4.9-4.8+0.7=0.8 X=0.8
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