x62x73x9 solve the equationcheck your answerSolution x6 2x7

[x+6]-[2x+7]-3x=-9
solve the equation.check your answer

Solution

x+6 - (2x+7) - 3x = -9

x+6 - 2x - 7 - 3x = -9

Now we can gather all the x\'s into one term...

x-2x-3x +6 - 7 = -9

-4x + 6 -7 = -9

...and now simply solve for x!

-4x = -9 - 6 + 7

-4x = -8

4x = 8

x = 2

We can verify that this is the correct value for x by plugging it back into the original equation and making sure both sides are equal:

(2 + 6) - (4 + 7) - 6 = -9

8 - 11 - 6 = -9

-3 - 6 = -9

-9 = -9