kieraballetbear
kieraballetbear kieraballetbear
  • 02-05-2021
  • Mathematics
contestada

Solve the system with substitution
72 +10y = 36
y = 2x + 9

Respuesta :

centauron114 centauron114
  • 02-05-2021

Answer:

x= -63 y= -117

Step-by-step explanation:

72+10(2x+9)=36

72+20x+90=36

162+20x=36

20x=-126

×= -63

y= 2(-63)+9

y=-126+9

y= -117

Answer Link

Otras preguntas

what economic effect did World War 1 have on wheat farmers?
Within a single use of the scientific method, which of the following steps can only be performed after data is collected? A. Controls and variables are chosen.
Notebooks cost $1.20 each. This weekend they will be on sale for $0.80. What percentage is the sale?
How can you explain photosynthesis?
Which is greater 6km or54,000 mm
Use tide and tidal range in the same sentence.
Who was Shirley Chisolm?
what's the xyz affair
Pablo has $4,200 to invest for college. Pablo's goal is to have $5,000 after 4 years. Is this possible if he invests with a rate of return of 6%?
What is the median of 1.99 2.99 3.89 3.99