alfonso7guzman7 alfonso7guzman7
  • 03-10-2020
  • Mathematics
contestada

Subtitute 2x+y=7 and 3x-y=8

Respuesta :

taaaaan taaaaan
  • 03-10-2020
2x + y =7 (1)
3x-y=8 (2)

(1) + (2)

5x = 15
x = 3

Answer Link

Otras preguntas

Too much arousal in an athlete can lead to         A. increased muscle tension and attention deficits, thus decreasing performance.   B. a physical and mental
What is the difference of an astronomer and an astrologer ??
how are the nervous system and the endocrine system different?
find the sum of 7a 3 14a 12 and -6a 3 12a 2 -7.
a right pyramid with a square base has a base edge length of 24 feet and slant height of 20 feet what is the height of the pyramid
Solve the inequalities, if possible, and graph. 4(4t + 2) < 2(4t + 4).
why was it difficult to make changes to the article of confederation?
The mediocre teacher tells. The good teacher explains. The superior teacher inspires
two-year-old sara lives in a home where the family has a german shepherd. sara knows the word doggie. one day, when sara is outside with her mother, she sees a
how write 20 sentences about an unexpected visitor