estefanylop
estefanylop estefanylop
  • 10-11-2020
  • Mathematics
contestada

Solve.
3
b=-a
a + b = 21

Respuesta :

noursyam2013 noursyam2013
  • 11-11-2020

Answer:b=-10.5, a=31.5

Step-by-step explanation: 3b=-a , -3b=a

a+b =21

-3b+b = 21

-2b=21

b=-10.5

a=-3b

a=-3*-10.5=31.5

Answer Link

Otras preguntas

Marty ate 4/6 of his pizza and Luis ate 5/6 of his pizza. Marty ate more pizza than Luis . How is that possible?
How would you to solve this equation by showing all your work and answer for my math teacher to correct 5-6k=8
If mars is 225 million kilometers from the sun, how long does it take for light from the sun to reach mars?
a 6 pack of undershirts cost 13.98. this is 3.96 less than the cost of buying 6 individual shirts. ir each undershirt Costa fue same amount, how much does each
What word is defined by a continuous range of a single feature, such as wavelength
Why are lunar calendars not more widely used today?
where is the 3rd quadrant
context of x y intercept and slope?
How does the mechanical advantage of a ramp change as the ramp becomes longer?
What does the word pythagorean mean?
good job