-7x-16x=3-12
-23x=-9
x=-9:(-23)
x= 9/23
3) 5x-11=2x+7
5x-2x=7+11
3x=18
x=18/3
x=6
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Answers & Comments
1)x=18:6
x=3
2) 12 — 7x=16x + 3
-7x-16x=3-12
-23x=-9
x=-9:(-23)
x= 9/23
3) 5x-11=2x+7
5x-2x=7+11
3x=18
x=18/3
x=6