Answ
hey 15 hours lateradm ls asdk
Step-by-step explanation:
Answer:
x = 6
Step-by-step explanation:
To solve the value of x
3(x-2)=12
First solve the brackets
3x -6 = 12
Now Transpose
3x = 12 + 6
3x = 18
x = 18 ÷ 3
x = 6
The value of x will be 6
Answer: Option B
B. 
Step-by-step explanation:
We have the following equations:
(1)
(2)
Let us call "a" the coefficient of the variable x in the first equation and call "b" the coefficient of the variable x in the second equation.
Then we must multiply the number "a" by a value z such that when adding
the result is zero.

So

We solve the equation for z


The first equation must be multiplied by a value of 
Answer:
A
Step-by-step explanation:
Yes just do that.................... ....m