boybaby boybaby

03-01-2020
Mathematics

contestada

what is the solution of the systrem 2x - y = -7 4x - y = -4

Respuesta :

Yang100 Yang100

03-01-2020

Answer:

x=3/2, y=10. (3/2, 10).

Step-by-step explanation:

2x-y=-7

4x-y=-4

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

-2(2x-y)=-2(-7)

4x-y=-4

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

-4x+2y=14

4x-y=-4

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

y=10

2x-10=-7

2x=-7+10

2x=3

x=3/2

Answer Link

Otras preguntas

A coin is tossed and a number cube a rolled. What is the probablity that the coin shows tails and the die shows a 1 or a 2 ?

which line has a y intercept of 2

Is the following a Proportion 15/40 = 5/8

What is more important, what a person thinks or does?

When waves of equal amplitude from two sources are out of phase when they interact it is called?

4. By tradition, when does the presidential campaign begin? A. In September, following the national convention B. After a candidate has gained enoug

If clay cost $16.50 for 50lb how much does clay cost for 45 pounds

Air flowing from the equator to the poles rises and falls in looping patterns. What are these patterns called? A. The Coriolis Effect B. Convection Cells C. Ema

Hugo is mixing blue paint with red paint to create purple paint. The ratio of blue to red is 3 to 2. How many pints of blue paint will he use to create 40 pints

Simple exocrine glands are found in the ___ glands in dogs. A. Sweat B. Adrenal C. Salivary D. Mammary