katie276
katie276
22-11-2017
Mathematics
contestada
Solution to 5x+y=-8 and 4x-2y=-40
Respuesta :
choixongdong
choixongdong
22-11-2017
5x+y=-8 so y = -5x - 8
4x-2y=-40
substitute
y = -5x - 8 into 4x-2y=-40
4x- 2y = -40
4x-2( -5x - 8) = -40
4x + 10x + 16 = -40
14x = -56
x = -4
y = -5x - 8
y = -5(-4) - 8
y = 20 - 8
y = 12
answer
x = -4 and y = 12
Answer Link
VER TODAS LAS RESPUESTAS ( 52+ )
Otras preguntas
With 95% confidence, the researcher estimates the mean birth weight of all babies born to women who are over the age of 40 to be between 2935 and 3135 grams. Th
-25.63+ -30.59 ??? Can someone let me know what this equals?
What does X most likely represent?
please help me please
What were the three things that the First Continental Congress accomplished?
Which equations are equivalent to the equation?
Under line the Topic sentence
which of the following is not a function that water provides our bodies?
Imagine you and your friend from school have traveled to Mexico as part of a student exchange program. Today is your first day at school in Mexico, and your tea
Which river played an important role in the expeditions of Lewis and Clark? A. the Ohio River B. the Colorado River C. the Missouri River D. the Arkansas Ri
