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1. (2x+5)/3=11
(2x+5)=11×3
2x+5=33
2x=33-5
2x=28
x=14
2. 7(4-3x)=2(8x-9)+6
28-21x =16x-18+6
28+18-6=16x+21x
40=37x
40/37=x
3. 2/(3x+10)=1/(x-1)
3x+10=2x-2
3x-2x=-2-10
x= -12
4.2x/3-3x/8=7/12
taking the LCM of 3 and 8 is 24
24/(16x-9x)=7/12
7x=7/12×24
7x= 14
x=2
hope it's helpful!
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