I would double check these if I were you. Sometimes I make dumb mistakes, but here you go.
Answer:
2. x=13
4. x=0.5
6. x=-9
7. x=8
8. [tex]x=\frac{-7}{2}[/tex]
9. [tex]x=\frac{10}{3}[/tex]
10. x=4
11. x=5
12. [tex]x=\frac{7}{4}[/tex]
Step-by-step explanation:
2.
[tex]2(5x-3)=9x+7\\\\10x-6=9x+7\\\\x=13[/tex]
4.
[tex]5(3x-1)-6x=3x-2\\\\9x-5=3x-2\\\\6x=3\\\\x=0.5[/tex]
6.
[tex]5x=3(x-6)\\\\5x=3x-18\\\\2x=-18\\\\x=-9[/tex]
7.
[tex]5x=2(x+12)\\\\5x=2x+24\\\\3x=24\\\\x=8[/tex]
8.
[tex]7(2x-3)=20x\\\\14x-21=20x\\\\6x=-21\\\\x=\frac{-21}{6} =\frac{-7}{2}[/tex]
9.
[tex]4(3x+5)=18x\\\\12x+20=18x\\\\6x=20\\\\x=\frac{20}{6} =\frac{10}{3}[/tex]
10.
[tex]6(6-x)=3x\\\\36-6x=3x\\\\9x=36\\\\x=4[/tex]
11.
[tex]5(8-x)=3x\\\\40-5x=3x\\\\8x=40\\\\x=5[/tex]
12.
[tex]4(x+3)=12x-2\\\\4x+12=12x-2\\\\8x=14\\\\x=\frac{14}{8} =\frac{7}{4}[/tex]
