freesmokedrizzy
freesmokedrizzy freesmokedrizzy
  • 13-07-2020
  • Mathematics
contestada

PLEASE HELP ASAP!:

Solve for a and b
6a-b=-5
4a-3b = -8

Respuesta :

Space
Space Space
  • 13-07-2020

Answer:

a = -1/2

b = 2

Step-by-step explanation:

Step 1: Rewrite 1st equation

-b = -5 - 6a

b = 5 + 6a

Step 2: Substitution

4a - 3(5 + 6a) = -8

Step 3: Solve

4a - 15 - 18a = -8

-14a - 15 = -8

-14a = 7

a = -1/2

Step 4: Plug in a to find b

6(-1/2) - b = -5

-3 - b = -5

-b = -2

b = 2

Answer Link

Otras preguntas

A cup of cereal can contain 480 milligrams of salt, which is 20% of the recommended daily amount. What is the recommended daily amount of salt?
Which word in the sentence, if any, should be followed by a comma? The calves have gotten loose again Dad. A. calves B. There is no error in comma usage. C. got
Multiply. Express the product in simplest form. 2 /10 x 20 = n A.40 B.20 C.4 D 1/100
how did the Israelite religion develop
Rugs sell for 8$ per square foot. Beth bought a 9-foot-long rectangular rug for $432. How wide was the rug?
i just really ned help on these!
Which of the following is NOT subject to rapid and continual change? a. fads c. urban legends b. fashions d. public opinion
Precipitation is most likely to occur when the sky is?
what change took place in the American labor force between 1800 and 1860
What are the white nights of Scandinavia?