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1.
1/3(6x+9)=1/4(2x+4)
4(6x+9)=3(2x+4)
24x+36=6x+12
24x-6x=12-36
18x=-24
x=-24/18
x=-4/3
2.
2/3x-4=1/4x+8
2/3x-1/4x=8+4
8/12x-3/12x=12
5/12x=12
x=12.12/5
x=144/5=28,8
3.
2-3x/5=10+x/7
2-10=x/7+3x/5
-8=5x/35+21x/35
-8=26x/35
x=-8.35/26
x=-70/13
4.
1/8(6x+9)=3/5(2x-4)
5/3(6x+9)=8(2x-4)
30x/3+45/3=16x-32
10x+15=16x-32
15+32=16x-10x
47=6x
x=47/6
5.
2(2x-4)-3x=8-3(2-5x)
4x+8-3x=8-6+15x
8+x=2+15x
6=14x
x=14/6
maaf kalau bingung ;)