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Create an equation with one solution of x = −7.

10x − (x − 2) = 2x − (_+ x)
Full question is on attached image. All help is appreciated :)

Create an equation with one solution of x 7 10x x 2 2x x Full question is on attached image All help is appreciated class=

Respuesta :

Answer:

10x − (x − 2) = 2x − (40 + x).

The missing number is 40.

Step-by-step explanation:

Let the missing number be a, Then:

10x - (x - 2) = 2x - (a + x)

10x - x + 2 = 2x - a + x

9x - 2x - x = -a - 2

6x = -a - 2

When x = -7:

6(-7) = - a - 2

-42 + 2 = -a

-40 = -a

a = 40.

So the equation is

10x − (x − 2) = 2x − (40 + x).

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