djhawaiiboi djhawaiiboi
  • 02-10-2017
  • Mathematics
contestada

If (a,-7) is a solution to the equation 8a+3b=3, what is a?

Respuesta :

mongadonga
mongadonga mongadonga
  • 02-10-2017
b=-7
8a+3(-7)=3
8a+(-21)=3
8a-21=3
8a=24

Hope this helps. Vote me Brainliest if it does!
Answer Link
nycolesmith10 nycolesmith10
  • 02-10-2017

8a=-3(-7)-5
8a=21 -5=16
A=2
Substitue the value -7 for the b in the equation 
Answer Link

Otras preguntas

What effect do you think the Pyrenees, Alps, & Carpathian Mountains had on life in medieval Europe?
Where did Labor Day originate? A. Canada B. Ohio C. JCPenney D. California
What is the term used to describe a person who served a ruler or prince? a. courtier b. Renaissance man c. humanist d. sprezzatura
Which of the following best describes the difference between the way that early historians and modern historians have studied the past? a. Early historians con
why is every number with a 5 in the ones place not prime
At 10 A.M., the temperature was 71F°. At 3 P.M., the temperature was 86F°. Find the value of the slope and explain what it means.
what is the average of the first 50 even numbers?
write four numbers that round to 700,000 when rounded to the nearest hundred thousand
Factor by grouping 5x+15+xy+3y
what is the value of the digit 8 in 686,293