Nene2001
Nene2001
18-03-2016
Mathematics
contestada
how to solve x-y=102x-y=17
Respuesta :
Trevish
Trevish
30-03-2016
x-y=10
2x-y=17
So to start
x=10+y
now replace x in the second equation
2(10+y) -y=17
20+2y-y=17
20+y=17
y=17-20
y=-3
Now replace y with -3 in any equation to find x
x-(-3) = 10
x+3=10
x=10-3
x=7
Answer Link
VER TODAS LAS RESPUESTAS ( 86+ )
Otras preguntas
Choose the word that completes this analogy: If you are you have sick: fevers : healthy: A vitality B. encouraging c. progressing
ginny needs to leave the house by 9;00 she woke up at 5;00 how many minutes does she have to get ready
What is equivalent to the square root of 10 3/4x
(19,-9) (-7,-15) in slope intercept form
Hi can I have some help please thanks! Write a short paragraph answering the following question: 'If punishments were harsh enough, would there be no crime?’ Ma
The results or outcome of the experiment are called the….
Simplify the algebraic expression. 6n+5(10n−7)
Molly collected 16 seashells. In her collection, 2 of them are white. What division expression shows the fraction of shells that are white?
in right triangle ABC shown in the diagram below, altitude BD is drawn to hypotenuse AC, CD = 12, and AD = 3. What is the length of AB? a. 5 square root 3 b. 6
Finish the sentence It is challenging to see the relationships between photosynthesis and cellular respiration because...
