businessarrow36 businessarrow36
  • 11-01-2021
  • Mathematics
contestada

-7y+10x=140
7y+7x=-21
Solve for y

Respuesta :

odunn
odunn odunn
  • 11-01-2021

Answer:

-10

Step-by-step explanation:

add these two equations together to get rid of y. This gives you

x = 7

then plug x back into either equation and you can solve for y !

Answer Link

Otras preguntas

What are future effects on society and business using computers?
What is 97.356 in base ten numerals
when i was two, my brother was half my age now i am 100. what is my brothers age
What groups were threatened by john knox's ideas?
what is photonasty??
A 76.5 kg cross-country skier skiing on unwaxed skis along dry snow at a constant speed of 4.00 m/s experiences a force of friction of -60.0 N.  What is the coe
what is photonasty??
What does |-100| equal?
what is the perimeter of the inside of the track?use 3.14 for pie
Why did the east German party cease to exist by the end of 1989?