Desiree45 Desiree45
  • 01-02-2018
  • Mathematics
contestada

How do I solve this using substitution, graphing, or elimination?

How do I solve this using substitution graphing or elimination class=

Respuesta :

theosmith
theosmith theosmith
  • 03-02-2018
Substitution
2x - 3y = -5
      +3y   +3y
2x=-5 + 3y
divide both sides by 2
x = -2.5 + 1.5y

16 - 5x = 2y
16 - 5(-2.5 + 1.5y) = 2y
16 - 12.5 + 7.5y = 2y
3.5 + 7.5y = 2y
       -7.5y    -7.5y
3.5 = -5.5y
divide both sides by -5.5
y= -0.54 repeating and then you substitute that for y into either equation to figure out what x is. Sorry, my math might be wrong, I'm a middle schooler so uhh yeah
Answer Link

Otras preguntas

Local anesthetic drugs such as lidocaine block sodium ion channels in the neuron plasma membrane from opening. what effect would this have on action potential g
help will mark brainliest??????????????????????
5. Your friend wants to improve his/her cardiovascular endurance and asked you for advice. Choose the best answer to help your friend improve his/her cardiovasc
Families of functions
Find the measure of the supplement of the angle. 142° Enter your answer in the box. °
Why do people in jonas's community have the same birthday?
dirty headlight lenses are safe and do not cut the amount of light your headlights emit by as much as 90 % true or false
Which web-based application allows users to collaborate when creating content
What happens to shadows at sunrise and sunset??
select the correct meaning associated with the term unique