Rushingo Rushingo

30-11-2019
Mathematics

contestada

3) 8p + 7q= 43
2p-7=-q
I need to solve using substitution. thanks.

Respuesta :

Yang100 Yang100

30-11-2019

Answer:

p=1, q=5. (1, 5).

Step-by-step explanation:

8p+7q=43

2p-7=-q

------------------

q=-2p+7=7-2p

8p+7(7-2p)=43

8p+49-14p=43

8p-14p=43-49

-6p=-6

6p=6

p=6/6=1

2(1)-7=-q

2-7=-5=-q

q=5

Answer Link

Otras preguntas

Italian explorer Christopher Columbus was looking for .

Histamine is a chemical substance released in inflammatory and allergic responses. The histamine H1 receptor on target cells is a G protein-coupled receptor tha

The force that keeps objects moving in a circle is called centrifugal force. True False

The Department of Veterans Affairs creates a grant program for returning members of the service without prior authorization from the executive, legislative, or

The chloroplast internal membrane is organized into flattened membranous sacs called _________; they, in turn, are arranged in orderly stacks called _______ tha

Which organelles do eukaryotic cells have that prokaryotic cells do not have? this is a test hellpppp fast please name

In one hour, the scouts made a paper chain that was 950 centimeters long. How many meters long was their paper chain?

An orange cost $0.09.How much would 2 dozen oranges cost?

Solomon was diagnosed with ADHD at an early age. Throughout school he had extreme academic difficulties, though he excelled at art. When he graduated from high

A car is traveling to the right with a speed of 29\,\dfrac{\text m}{\text s}29 s m 29, start fraction, start text, m, end text, divided by, start text, s,