zaazzaaz9090 zaazzaaz9090
  • 16-04-2020
  • Mathematics
contestada

Solve using substitution.
x + 5y = -19
x - 5y = 1
Submit​

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 16-04-2020

Answer:

(-9,-2)

x= -9

y= -2

Step-by-step explanation:

x+5y=-19

x-5y=1

solve the equation

x+5y=-19

x=1+5y

substitute the value of x into an equation

1+5y+5y=-19

add 5y to 5y

1+10y=-19

subtract 1 to -19

10y=-20

divide both sides by 10

y= -2

substitute the value of y into an equation

x=1+5•(-2)

multiply 5 to -2

1+-10

add 1 to -10 but since 10 is a negative the equation is subtraction.

x= -9

(-9,-2)

Answer Link

Otras preguntas

Approximate irrational number 34 to the nearest 0.05
what's the relationship value of 8s in 8800 not what's the place value of 8s in 8800
what is the unit value of the 3 in 432?
six ways to add 6, 7 and 8
99,451 rounded to the nearest thousand
what is the name of the period that has the digits 913
Explain how to write 50,000 using exponents. Answer . First you write 10,000 then your exponent is 5. Thats how you Write 50,000 using exponents.
according to CC, which percentage of americans between the age of 12 and 21 doesn't exercise on a regular basis
What did Frederick the great mean when he said " in my kingdom, everyone can goto heaven in his own fashion"?
The ecosystem is the lowest level of the biosphere hierarchy to include _______.