thefloatingballon thefloatingballon
  • 04-11-2020
  • Mathematics
contestada

Solve the system of equations by substitution:
y= x - 2
x+y=12

A. (7,5)
B. (5,3)
C. (0, 1)
D. (14, 12)

Respuesta :

shaiktext
shaiktext shaiktext
  • 04-11-2020

Answer:

y=x-2

so ...

x+(x-2)=12

2x-2=12

2x=12+2

2x=14

x=14/2

x=7

x+y=12

7+y=12

y=12-7

y=5

Answer Link

Otras preguntas

A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes
What two major processes are involved in the oxygen cycle?
Solving systems by elimination: 2x + 4y = -4 3x + 5y = -3 Please show me your work so I can do the rest myself. Thanks!
What two major processes are involved in the oxygen cycle?
What two major processes are involved in the oxygen cycle?
A 1 digit number and a 3 digit number have a sum of 205.  The same two number have a difference of 195, a product of 1,000 and a quotient of 40.  What are the t
Can u paraphrase the quote ”let things take their course”
two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an
What is two thirds minus six thirds
Was the Gold Rush a good or bad thing for the United States?