amyflorida778 amyflorida778
  • 02-06-2021
  • Mathematics
contestada

which of the following statements is not always true?

a + (-b ) = -b + a

(a + b) + (-c) = a + [b + (-c)]

-(-a) = a

a - (-b) = (-b) -a

Respuesta :

sofiahemed22
sofiahemed22 sofiahemed22
  • 02-06-2021

Step-by-step explanation:

The answer is a - (-b) = (-b) - a

for example if we take;

a = 4

b = 2

c = 2

and we replace;

4 - ( -2) = (-2) - 4

6 = -6

which is not true....

All the remaining are true....

even u can just use the values of abc and check if its true....

Answer Link

Otras preguntas

Jane is 15 years older than Ganesh. She is four times as old as ganesh. Find their present ages
Question 1a. The following equation models the spread of a disease: Where: N(t) is the number of people infected at the time. N0 is the initial number of i
Identify the following situation in the box whether the effect is Good or Bad. Write your answer on the shape provided. Answer the questions that follow.​
Rohan bought a motorbike for rupees 5675 and spent 453 rupees on its repiar. Then he sold it for 1265. Find out the profit or loss he made.​
What are five real life examples of Volume expansion ​
What is an example of militarism being used in a good way
Danni a mixes red and yellow paint to get orange paint. In the previous mix there were 400ml of red paint. She decreases the amount of red paint in the ratio 7
Dans chaque cas réduire l'expression 2x-3+8-4x+x²
WILL GIVE BRAINLIEST IF ANSWERED FAST!!!
just explain how it's not 7 please ​