You find the variable x or y in one of the lines of the problem and then substitute the value of the variable you first found into the other line of the problem to find the other variable. Then, you plug all of the values you found into either line/equation of the problem to ensure that one side of the equation you pick is equal to what is on the other side of the "=" symbol.
Answer:
2x-3y+z
Step-by-step explanation:
-2x-y-2z+4x-2y+3z
combine like terms
-2x+4x= 2x
-y-2y= -3y
-2z+3z= z
so..
2x-3y+z
Answer:
1
Step-by-step explanation:
because a number multiplied with 1 is equal to itself
The first step would be to subtract 1 from both sides, leaving you with 5x = 10.
Answer:
it's B
Step-by-step explanation:
I'm quite sure it is. Hope it helps u
