Question

7x+(-7)=9x-7 what is the answer?

Answer 1

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Answer: 0

Step-by-step explanation:

`7x + (-7) = 9x - 7`

`7x - 7 = 9x - 7`

Now susbtract
`9x` from both sides

`7x -7 - 9x = 9x - 7 - 9x\\-2x - 7 = -7`

Then add 7 to both sides

`-2x - 7+7=-7+7\\2x=0`

`x = (0)/(-2) \\x = 0`

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Answer 2

x=0

Explanation:

7x+(-7)=9x-7

Add 7 to each side

7x+(-7)7=9x-7+7

7x = 9x

Subtract 7x from each side

7x-7x = 9x-7x

0 = 2x

Divide by 2

0 = 2x/2

0 = x