samhen93 samhen93
  • 03-12-2014
  • Mathematics
Answered

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



Answer :

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

Other Questions

which property is (3+5) times 6 = 3 + (5 times 6)
what is the answer to 4 b-4=
list the six external parts of a computer system, identify which is the output device and which is the input device?
Who has pennfostsr answers?
write 6/10 as a terminating decimal
turn 1/8 in to a decimal
what is 6/10 as a terminating decimal?
state the degree and leading coefficient of each polynomial in one variable. If it is not a polynomial in one variable, explain why. Need help 1. −6x^6−4x^5+
a giraffe can run about 14 meters per second find its speed in miles per hour
state the degree and leading coefficient of each polynomial in one variable. If it is not a polynomial in one variable, explain why. Need help 1. −6x^6−4x^5+