Question

linear equaton -2x-(x-1)+8=0​

Answer 1

-2x-(x-1)+8=0

-2x-x+1+8=0

-3x+9=0

-3x  =  -9   ( both minus will be cut off)

3x  =  9

x =   9/3

x  =   3

That's it

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Answer 2

- 2X - (X - 1) + 8 = 0

- 2X - X + 1 + 8 = 0

- 3X + 9 = 0

-3x = -9

X = $\huge\frac{<strong><em>-</em></strong><strong><em>9</em></strong>}{<strong><em>-</em></strong><strong><em>3</em></strong>}$

X = 3