jelly122204aa jelly122204aa
  • 03-11-2018
  • Mathematics
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What is x in the equation 12x-(7-3x)=-8x-30

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baseballryker269
baseballryker269 baseballryker269
  • 03-11-2018

First, you will need to flip the values.

12x - (7-3x) = -8x - 30

12x - 7 + 3x = -8x - 30

Add like terms.

15x - 7 = -8x - 30

Next, add 7 to each side.

15x - 7 + 3x + 7 = -8x - 30 + 7

15x = -8x - 23

Now, add 8x to each side.

15x + 8x = -8x - 23 + 8x

23x = -23

Divide each side by 23.

x = -1

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