Question

4题要过程

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Answer 1

Answer 2

Answer 3

2.(1)5x-5-2x-6=0
3x=11
x=3/11
(2)2x-4-12x+3=9-9x
-10x-1=9-9x
-x=10
x=-10
(3)6(x-2)-4(2x-3)=24
-2x=24
x=-12
(4)
6(x+4)-30(x-5)=10(x+3)-15(x-2)
-19x=-114
x=6

Answer 4

(1)5(x-1)-2(x+3)=0
5x-5-2x-6=0
3x=11
x=11/3
(2)2(x-2)-3(4x-1)=9(1-x)
2x-4-12x+3=9-9x
2x-12x+9x=9+4-3
-x=10
x=-10
(3)(x-2)/4-(2x-3)/6=1
3(x-2)-2(2x-3)=12
3x-6-4x+6=12
-x=12
x=-12
(4)(x+4)/5-(x-5)=(x+3)/3-(x-2)/2
6(x+4)-30(x-5)=10(x+3)-15(x-2)
6x+24-30x+150=10x+30-15x+30
-19x=-114
x=6