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

where did japan first expand its empire after 1930
Describe a pattern in the sequence of numbers. Predict the next number. 1) 1, 2, 6, 24, ___ 2) 0, 3, 8, 15, 24, ___
where does the shadow of the shuttle in space form?
Which characteristic is shared by sonnets and haiku?
where will you find maximum rate of evaporation - ocean, pond or an aquarium? Give reason to support your answer.
find a common solution for each system of equations: y=3x+5 y=-5x-3
the graph below shows the distribution of students grades on their last math test. Based on the Empirical rule, what percent of students made.. *btwn 80 n 85 o
List all the commonwealth games mascots from 1982-2014
Guess the mystery number.The number is greater then 10 and less then 18. The number is the sum of two identical odd numbers. What is the number? Show how you fo
in a parallelogram one angle is 9 times the size of another. find the measures of the angles