leidy16ruano502 leidy16ruano502
  • 01-10-2020
  • Mathematics
contestada

Help me please
Solve the system algebraically using substitution.

Help me please Solve the system algebraically using substitution class=

Respuesta :

viaali81381
viaali81381 viaali81381
  • 01-10-2020

Answer:

y = 5/3

x = 8/3

Steps:

y = x - 1

2x + y = 7

Substitute y = x-1

(2x + x - 1 = 7)

Simplify: 3x - 1 = 7

Isolate x: 3x - 1 = 7:  x=8/3

Plug the valuse of x into the other equation (y = x- 1):    y = 8/3 - 1

8/3 - 1 = 5/3

y = 5/3

y = 5/3, x = 8/3

Answer Link

Otras preguntas

How Do Clownfish Catch Their Food?
rewrite the expression without using a negative exponent 6m^-2
what were the main ideas of the reformation?
What evidence in the declaration is there of religious faith? How do you think this religious faith influenced the ideals expressed in the declaration
I would like to know if 200 cm is greater or less than 3 m
a gasoline pump delivers 4 2/5 gallons of gas per minute. how many minutes will it take to fill a gas tank that holds 16 1/2 gallons?
Why can't we change the subscripts in balancing chemical equations?
What is the volume of a rectangular box that has base area of 75 square inches and a height of 20 inches
How many quarts in 24 pints?
You hear a thunder 3 seconds after you see lightning. How far away is the storm?