sascelsi
sascelsi sascelsi
  • 02-09-2020
  • Mathematics
contestada

-1/2(3x-4)+3x=5/6
Please help

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 03-09-2020

Answer:

  x = -7/9

Step-by-step explanation:

The usual recommendation is to clear fractions first. Here, you can do that by multiplying both sides of the equation by 6.

  6(-1/2(3x -4) +3x) = 6(5/6)

  -9x +12 +18x = 5 . . . . . . . . . simplify

  9x = -7 . . . . . . . . . . . . . . . . . subtract 12

  x = -7/9 . . . . . .divide by 9

__

Another way to do this is to eliminate parentheses first.

  -3/2x +2 +3x = 5/6

  3/2x = -7/6 . . . . . . . . . collect terms, subtract 2

  x = (-7/6)(2/3) = -7/9 . . . . multiply by 2/3

Answer Link

Otras preguntas

Which of the following steps is not critical in the creation of Bt corn?a.Cut out a piece of DNA from a DNA molecule.b.Splice a piece of DNA into DNA from anoth
round to the nearest hundredth 5.6192
write in decimal form fourteen and eighty-Four hundredths
What's the other word a weak or lifeless feeling
What's the word for looking down on others; proud and scornful
Liz wants to drink 1.5 litres of water each day. She buys the water in packs of 6 bottles. Each bottle contains 0.5 litres of water. How many packs of water do
If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C
What's the word for looking down on others; proud and scornful
What's the other term for: lacking respect; scornful
Which expression is equivalent to 27/125