bjefferson16 bjefferson16
  • 25-02-2020
  • Mathematics
contestada

Use substitution to solve the system.
y = 3x +16
4x - 5y = -25

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 25-02-2020

Answer:

(-5,1)

Step-by-step explanation:

y=3x+16

4x-5y=-25

substitute the given value of y into the equation.

4x-5(3x+16)=-25

solve

x=5

substitute the given value of x into the equation.

y=3x(-5)+16

solve

y=1

(-5,1)

Answer Link
DavidM58
DavidM58 DavidM58
  • 25-02-2020

Answer:

x=-5

y=1

Step-by-step explanation:

4x-5y=-25

4x-5(3x+16)=-25

-11x-80=-25

-11x-80+80=-25+80

-11=55

-11x/-11=55/-11

x=-5

y=3x+16

y=3(-5)+16

y=-15+16

y=1

Answer Link

Otras preguntas

60% of what number is 72?
How to add and subtract fractions
a stone is dropped from the top of 50 m high tower simultaneously another stone is thrown upward with a speed of 20 m/s . calculate the time at which both the s
(a-6b)(a+6b) pls answer
how many days are really in a year
Easy I just don't understand math help?
how did hitler change the lives of workers
what are the differences between a trumpet and trombone?
How to add and subtract fractions
The recommended dose of Vancocin® for a severe staphylococcal infection is 40 mg/kg/day.  The adult weighs 180 pounds and is to receive the medication IV q6h