SOLUTION: what is the answer to this questions A. what operation is performed? 1. x-8=2x 2. x+8=2x B.solve each equation 3. x+3=9 4. x-4=4 please message me on facebook Ceness Soria

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Question 1002060: what is the answer to this questions
A. what operation is performed?
1. x-8=2x
2. x+8=2x
B.solve each equation
3. x+3=9
4. x-4=4
please message me on facebook Ceness Soriano
Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website!
A. what operation is performed?

1. x-8=2x

subtract x from both sides of the equation to get:
x - x - 8 = 2x - x
combine like terms to get:
-8 = x
confirm by replacing x with -8 to get -8-8 = 2(-8) which becomes -16 = -16 which confirms the solution is correct.

2. x+8=2x

subtract x from both sides of the equation to get:|
x - x + 8 = 2x - x
combine like terms to get:
8 = x
confirm by replacing x with 8 to get 8+8 = 2(8) which becomes 16 = 16 which confirms the solution is correct.

B.solve each equation

3. x+3=9

subtract 3 from both sides of the equation to get:
x + 3 - 3 = 9 - 3
combine like terms to get:
x = 6
confirm by replacing x with 6 to get 6 + 3 = 9 which becomes 9 = 9 which confirms the solution is correct.

4. x-4=4

add 4 to both sides of the equation to get:
x - 4 + 4 = 4 + 4
combine like terms to get:
x = 8
confirm by replacing x with 8 to get 8-4 = 4 which becomes 4 = 4 which confirms the solution is correct.