kaily3
kaily3
30-03-2018
Mathematics
contestada
which is the answer and how did you solve it?
Respuesta :
Rabin
Rabin
30-03-2018
its pretty simple
9x-7y = 22
x + 3y = -24
(9x-7y = 22)
-9(x + 3y = -24)
= -9x -27y = 216
+ 9x-7y = 22
= -34y = 238
= / -34 = 238/-34
y = -7
now plug -7 in one of the equation
x + 3(-7) = -24
x -21 = -24
+21. +21
x = -3
so answer is x = -3 and y = -7
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
so what's the answer i not gonna work it out
A function rule for the cost of shirts from Quality Clothes is y=30+ 6z. Rewrite the rule using function notation. a: t(z) = 20 + 8z. b: t(y) = 20 + 8z. c: g(z)
Circle and label a noun, verb, pronoun and conjunction in this sentence: I enjoy reading detective novels because they are full of plot twists and turns HELP!
Given f(x) = 4(3-x), what is the value of f(-9)?
please help! need this done ASAP!
A journal detailing immigrants coming to America through ellis Island
ster Test Introduct X ookmarks 37 ♥ 12.app.edmentum.com/assessments-delivery/ua/la/launch/49014204/45309719/aHR0cHM6Ly9mMi5hcHAUZWRtZW5< Course Home Home-AP
Question 5 of 5 Select the correct answer from each drop-down menu. Consider the given function
who should profit from the HeLa cell like and why
A hawk sits on a telephone wire. If the wire dips so that it makes a 30 degree angle with the horizontal, and the tension in the wire is 25 N, what is the hawk’
