radomes.openskiesproject.org
Mankiii
Mankiii Mankiii
  • 11-10-2015
  • Mathematics
Answered

solve :

20-9x=11

4(2x+1)=8

5(2x+5)=-15

3(8x+1)=-21

Verified Answer :

Julik
Julik Julik
  • 11-10-2015

20-9x=11
-9x=11-20
-9x= -9
x= -9/(-9)
x=1


4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
x=0.5


5(2x+5)=-15
2x+5= -15/5
2x+5= -3
2x= -3-5
2x= -8
x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
x= -8/8
x= -1

Answer Link

Related Questions

Sleeping is a behavior that is dependent on both instinctive and environmental conditions Please select the best answer from the choices provided a True b False
There are some cultural factors that can influence healthcare workers acceptance of violence in the workplace These include an unwillingness to stigmatize perpe
Why did the Maya use stelae to attack enemies to create calendars to drain swamps to keep records
Which of the following is LEAST needed when programming a computer Flow chart Debugging Computer language Hopper
How to round 15472988 in ten thousands
What two functions do transistors combine
What type of evidence is used in this excerpt from The Crisis No1 by Thomas Paine
A seller buys an item from a manufacturer for 100 and sells it to a customer for 120 Which of these terms describes this extra 20
A contemporary equivalent of Jonathan Swift might be a a newspaper reporter b a political speechwriter c a writer for The Daily Show d a television news anchor
The highest form of constitutional law in America is federal or national law