02-12-2016
Mathematics

contestada

x+2=3x+8

geometry
solve for x

Respuesta :

mahomie4life749 mahomie4life749

02-12-2016

x+2=3x+8
Subtract 3x from both sides
x+2−3x=3x+8−3x−2x+2=8
Subtract 2 from both sides
-2x+2-2=8-2
-2x=6
Then divide both sides by -2
You get x= -3

Answer Link

02-12-2016

x + 2 = 3x + 8
(Subtract 8 over)

x - 6 = 3x
(Commutative property, x on the left is easier to understand usually)

3x = x - 6
(Subtract x over)

2x = 6
(Divide both sides by 2)

x = 3

Answer Link

Otras preguntas

What charges must the particles have to create the electric field shown

Which sentence, if inserted between sentence (2) and sentence (3), would make the BEST addition to bridge the gap between what the two sentences are saying?

The "umbrella statement" for all parts of an argument in a speech is called the

Read this excerpt from Eleanor Roosevelt’s "What I Hope to Leave Behind." As I see it we can have no new deal until great groups of people, particularly the wom

y=800-50x and y=gallons of water and x=hours it takes. How many hours does it take to empty?

what is employment law?

what does y equal in this equation 5(y+2/5)=-13

explain the differences (exponents) -6^4 and (-6)^4

Karma Company has prepared its operating budget for the first quarter of 20x9. The company forecasts sales of $50,000 in February, $60,000 in March, and $70,000

A cylindrical rod of 1040 Steel originally 10.5 mm in diameter is to be cold worked by drawing to a final diameter of 8.5 mm. The circular cross section will be