mokerberg
mokerberg mokerberg
  • 02-12-2016
  • Mathematics
contestada

5x+12=-7x solve each system by subsitution

5x127x solve each system by subsitution class=

Respuesta :

doramacias
doramacias doramacias
  • 02-12-2016
on the problem minus 5x to the -7 so you'll just have 12= -12x and the answer is x=-1 
Answer Link
mols
mols mols
  • 02-12-2016
5x+12=-7x
12x+12=0 (+7x)
12x=-12 (-12)
x=-1 (/12)

y=5x+12
y=5(-1)+12
y=-5+12
y=7

Hope this helps:)
Answer Link

Otras preguntas

a subway train starts from rest at a station and accelerates uniformly at 1.8m/s^2 for 15 sec. then it runs at a constant speed for the next 35 sec. before dece
What's the other term for: lacking respect; scornful
Your friend is asked to differentiate between evaporation and boiling.what questions could you ask to make him to know the difference between evaporation and bo
What's the other word speaking in circles; round-about speech
Jim has gotten scores of 99 and 93 on his first two tests. what score must he get on his third test to keep an average of 90 or greater
How did Niccolo Machiavelli’s book The Prince set him apart from other writers of the Renaissance?
what we need to become success
What was the major purpose of the Truman Doctrine?
What's the other term for: explosive or changing very quickly
How did Niccolo Machiavelli’s book The Prince set him apart from other writers of the Renaissance?