Question

Find the value of x that makes the equation true.



–6x = 42









A.

–7








B.

–252








C.
48







D.
36

Answer 1

On questions like these, if you are unsure as to how to solve for x, it can be helpful to simply substitute answers in for the x value and see if they make the statement true.

Answer 2

I think its a because if you substitute x with 7 ur answer will be 42

Answer 3

so for instance: if we substitute in answer a. for x you get something like this: -6 (-7) = 42
and then solve, 42=42, this is true so a is the correct answer.

Answer 4

Identify which property of equality is used to transform Equation 1 to Equation 2.



Equation 1: 3x = 12
Equation 2: x = 4









A.
subtraction property of equality







B.
division property of equality







C.
addition property of equality







D.
multiplication property of equality

Answer 5

however if you are not given answers, it is important to know how to solve this equation algebraically:
-6x=42 the equation you start with
-6x/6 = 42/-6 this is the division property of equality (what you do to one side, you do to the other.)
and x=-7

Answer 6

D.because if u replace the x with 4 your answer will be d multiplication if u multiply 3 times 4 wich will give u 12

Answer 7

you have to divide by x to find the answer so the b division property of equality is the correct answer

Answer 8

the division property of equality is used to find the answer

Answer 9

you can divide that will be easier 4 didvide by 12 will be 3 but wont you find the same anwer if u multiply. 3 times 4=12

Answer 10

you will get the same answer, 3(4)=12 and 12/3=4 and 12/4=3. In order to change 3x=12 into x=4 with out knowing the answer simple math, you must divide, this is called the division property of equality

Answer 11

Ok thx

Answer 12

yeah, let me know if you have any other questions!