Question

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

Answer 1

Answer:

x=0

Step-by-step 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

Answer 2

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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

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

$x = \frac{0}{-2} \\x = 0$

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