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 ( 55+ )
Otras preguntas
3+ (3 - 8)2 - 7 simplify the given expression
i will mark as Brainliest if answered
How did America evolve from a colony to an independent nation?
A currency’s exchange rate is how many denominations the currency has. its stable rate as established by the government. how easily it can be divided into other
What are some of the basic functions of government? (Check all that apply
HELP MEH PLZ Identify whether the description refers to a monomer, a polymer, or both. Macromolecule: Repeating units: Simple molecule: Covalent bonds:
Write the slope-intercept form of the equation: 7x + 5y = -35
Was Poverty Point considered a major Native American trading center ?
What was the most effective opposition to the English laws on trade and taxes? (A) a boycott of British goods (B) passing laws of resistance in colonial assembl
ILL GIVE YOU BRAINLEST ANSWER Select the correct answer What aspect of events does a fishbone diagram help to illustrate? Ο Α. many causes, one effect OB. one c
