Answer:
Never applies
Step-by-step explanation:
When we talk of the opposite of a number, we are simply referring to the additive inverse. which is the negative of whatever value that we have
So let’s add -2 to 2; that gives zero
let’s add -5 to 5 = 0
We can see that at all
points, the answer we are getting is zero
Answer:
Solving for one variable and using that solution to find the other variable.
Step-by-step explanation:
So if i said y=3x-2 with another equation like 12y+4= -16
you would plug in y to the second equation making it 12(3x-2)+4=-16 then you would solve for x. I hope this helps
Answer:
however dc =20 cm is
Step-by-step explanation:
so this isnt contrary to 50
|2x-3|=2x-1
need to consider two cases
(1) 2x-3<0 --> x<3/2
-(2x-3)=2x-1
x=1, and this is <3/2 so that's a valid solution
(2) 2x-3>=0 --> x>=3/2
2x-3=2x-1
-3 = -1 so there no solution for x>=3/2
The single solution is x=-1
(7x) + 3 = 8
subtract both sides by 3.
7x = 5
divide both sides by 7 to isolate the variable, x.
x = 5/7