cecilia345 cecilia345
  • 04-05-2021
  • Mathematics
contestada

solve y=x-2 and x+y=12 using substitution

Respuesta :

Аноним Аноним
  • 04-05-2021

Step-by-step explanation:

y=x-2....eqn1

x+y=12.....eqn2

now,

from eqn 1

y= x-2

again, putting value of y in eqn 2

  • x+y=12
  • x+x-2=12
  • 2x=12+2
  • x=14/2
  • x=7

in eqn 1

  • y=x-2
  • y=7-2
  • y=5

hope it helps..

Answer Link

Otras preguntas

A seismograph records an earthquake, but scientists do not feel it. The earthquake has a magnitude _____. A : between 3.0 and 4.0 B : > 5.0 C : Between 7.0 a
Bronfenbrenner's bioecological approach suggests that society, types of governments, religious value systems, political value systems, and other broad factors a
ln(y+1)-lny=1+3lnx . Express y in terms of x, in a form not involving logarithms. (4 marks, Maths CIE A level)
A comma should not be used to __________. separate compound elements set apart an introductory phrase separate narration from quotations set apart introductory
What does Pa trade for things he needs? A. tobacco B. furs C. cornmeal D. sugar This is once again from the little house on the prairie. Ill mark b
What is the capital city of kenya?
If Sam makes $116.25 for 15 hrs of tutoring. How much money does she make per hr?? HELP PLZ SOMEONE ASAP
Which action marked the end of reconstruction in the united states?
How do u write all real numbers are less than 69?
What three words are at the start of every scale