26VelezTiana 26VelezTiana

18-03-2021
Mathematics

contestada

what is 3x- 12 = -2x - 42 ??? I know it equals -6 cause i did it on a caculator but how do i explain my answer ??

Respuesta :

simmyndlabu57 simmyndlabu57

18-03-2021

Answer

-6

Step-by-step explanation:

3x-12=-2x-42

(Collect like terms together:)

3x+2x=-42+12

(when the number crosses the equal sign it changes signs)

5x/5=-30/5

(We devided by 5 cause we looking for x not 5x)

Answer Link

Otras preguntas

Chemicals that help chemical reactions occur at faster rates in living organisms are known as (1) biotic resources (2) simple sugars (3) oxygen mol

Solve the system of equations by graphing. 2x+y=6. x+2y=6

The Tuareg culture exhibits a combination of __________. A. African and Christian traditions B. African and Jewish traditions C. Islamic and pre-Islamic tradit

How do you think the splitting of the empire into two parts helped it survive for another 200 years?

Select the answer that puts the events of the Reformation in correct chronological order. 1. Dutch Protestants revolt against Spain in 1556. 2. Council of Tren

What methods did the Assyrians use when they attacked enemy cities?

The protagonist in Daniel Defoe's The Life and Adventures of Robinson Crusoe belonged to the middle class. What was the effect of portraying him as a youth belo

A small pizza has a diameter of 21 cm. What is the approximate circumference of the pizza? Use π= 3.14.

a plan designed to obtain a specific goal or result is called

What is the mole ratio of N2 to NO2 in the question ... N2 + 2O2-> 2NO2