brnathy88 brnathy88

04-05-2021
Mathematics

contestada

The sum of two numbers is 2. Their difference is -16. What is the first number?

Respuesta :

clarch19 clarch19

04-05-2021

Answer:

x = -7

y = 9

Step-by-step explanation:

x + y = 2

x - y = -16

substitute '2-x' for 'y'

x - (2-x) = -16

x - 2 + x = -16

2x - 2 = -16

2x = -14

x = -7

-7 + y = 2

y = 9

Answer Link

Otras preguntas

find the coordinates for graphing this system of equations x+3y=-15. y=-7

Why did Lincoln emerge as a leader after the Lincoln-Douglas debates?

What is the inference?

How many units of ATP are produced from aerobic respiration

Long-term potentiation is a result of _____. a. repeated practice that builds neural pathways b. an increase in the number of vestibular connections with other

what was regarded as a strong point of jefferson davis background

a rectangular solid has sides of 7cm, 9cm, and 11 cm. what is the surface area?

According to the American College of sports medicine you need to exercise ___ times a day to lose weight

Subtract. Simplify your answer before typing it in. 9h 24min 13s - 6h 45min 9s

There was no dissuading him however and at a quarter past ten he closed the attic door behind him and went up the narrow twisting stairs. We later heard ominous