kyleigh20 kyleigh20
  • 10-09-2018
  • Mathematics
contestada

8 decreased by 3 times a number equals 2

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BiologiaMagister
BiologiaMagister BiologiaMagister
  • 10-09-2018

Equation:

8 - 3 * x = 2 → we solve for 3 * x

8 - 3x = 2 → we take 8 to the right side of the equation

-3x = 2 - 8 → we solve for 2 - 8

-3x = -6 → we take -3 to the right side of the equation

x = -6 / -3 → we solve for -6 / -3

x = 2 → final answer


Proof:

8 - 3 * 2 = 2 → we solve for 3 * 2

8 - 6 = 2 → we solve for 8 - 6

2 = 2 → numbers are the same, meaning our equation is correct


Answer:

[tex]\boxed{\bf~x~=~2}[/tex]



Hope it helped,


BioTeacher101

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