srilovebts
srilovebts srilovebts
  • 01-02-2022
  • Mathematics
contestada

solve the system of equations using elimination

15q - 4r = 62
5q + 8r = 86

Respuesta :

SofiaPosada25 SofiaPosada25
  • 02-02-2022

Answer:

q=6 r=7

Step-by-step explanation:

2(15q-4r=62)

30q-8r=124

5q + 8r = 86

35q=210

q=6

5(6)+8r=86

30+8r=86

8r=56

r=7

Answer Link

Otras preguntas

question on the image (with the steps)​
It's actually a media question...help ​
a bag contains three red marbles five blue marbles and seven green marbles.what is the ratio of blue marbles to the total number of marbles​
Importance of the water cycle
a set of values behaviours and relationship that umderpins the trust the public has in dentist is called A dental professionalism B dental professii. C Dental p
Help me pls I put the picture in the attach file below (Sorry i'm in secondary school but i have a problem with my settings)
Bindy, an 18-year-old high school graduate, and Luciana, a 40-year-old college graduate, just purchased identical hot new sports cars. Acme Insurance charges a
What mass of N2O5 will result from the reaction of 6.0 mol of NO2 if there is a 61.1% yield in the reaction
Is this true or false?​
why was the CDR the most developed region in Nepal??​