Gothicgirl7724
Gothicgirl7724 Gothicgirl7724
  • 25-10-2016
  • Mathematics
contestada

-74 = 5x + 3x - 18 solve for x

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Аноним Аноним
  • 25-10-2016

Simplify.

 

−74=5x+3x−18

 

−74=8x−18

 

Then you flip.

 

8x−18=−74

 

Add 18 to both sides.

 

8x−18+18=−74+18

 

8x=−56

 

Divide both sides by 8.

 

8x/8=−56/8

 

x=−7
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Kittylover72 Kittylover72
  • 25-10-2016
Hope this helps 5x+3x=8x -74=8x-18 +18. +18 -56=8x ---------- divide 8. 8. .?=x or x=?
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