samhen93 samhen93
  • 03-12-2014
  • Mathematics
contestada

6x-5y=22 y=-8 using systems of equations by substitution

Respuesta :

AndyBryer
AndyBryer AndyBryer
  • 03-12-2014
We need to sub y=-8 into the first equation
6x+40=22
6x=-18
x=-3
Answer Link
luana
luana luana
  • 03-12-2014
[tex] \left \{ {{6x-5y=22} \atop {y=-8}} \right. \\\\ substitute\ y=-8\ into\ first\ equation\\\\ 6x-5*(-8)=22\\\\ 6x+40=22\ \ \ | subtract\ 40\\\\ 6x=-18\ \ \ | divide\ by\ 6\\\\ x=-3\\\\ y=-8[/tex]
Answer Link

Otras preguntas

A new popular midsize car has a retail price of $25,000. The midsize car's value M(t) is given by the exponential model M(t)= 25,000 (4/5)^t where t represents
What two main types of interactions that environmental scientists study and give an example of each.
Based on the evidence in the passage, Nina can be described as A. naive. B. meek. C. competitive. D. observant.
Least common multiple 14,6
speech about C.W.W.Kannangara​
This is my last answer pls help
A woodpecker pecked at a 17 m wooden pole until it cracked and the upper part fell with the top hitting the ground 10 m from the foot of the pole. Since the upp
Name at least two features that are created where the land meet
8-(-5)=? I cant seem to figure it out. Help me out!
How’s does president Reagan’s story about sir Francis drake contributed to the message of president Reagan’s speech?