eggsaladnikki eggsaladnikki
  • 10-09-2021
  • Mathematics
contestada

This is really confusing I could really use some help with this thank you.

This is really confusing I could really use some help with this thank you class=

Respuesta :

et762572
et762572 et762572
  • 14-09-2021

15)  2x-5=-20

2x-5+5=-20+5

2x=-15

[tex]\frac{2x}{2}=\frac{-15}{2}[/tex]

[tex]x=-\frac{15}{2}[/tex]

16) x/3-7=11

x/3=11+7

x/3=18

x=18*3

x=54

17) [tex]\frac{9x}{4}=-9[/tex]

[tex]\frac{4\cdot \:9x}{4}=4\left(-9\right)[/tex]

[tex]9x=-36[/tex]

[tex]\frac{9x}{9}=\frac{-36}{9}[/tex]

[tex]x=-4[/tex]

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good job