What is the answer to (x+9)(x+1)=x(x+8)-1 ?

The answer to (x+9)(x+1)=x(x+8)-1 is x=-5

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(x+9)(x+1)=x(x+8)-1

(x + 9) (x + 1) = x (x + 8) - 1

x = - 5

Solution steps

(x + 9) (x + 1) = x (x + 8) - 1

Expand

x (x + 8) : x^{2} + 8 x

x^{2} + 10 x + 9 = x^{2} + 8 x - 1

Expand

(x + 9) (x + 1) : x^{2} + 10 x + 9

x^{2} + 10 x + 9 = x^{2} + 8 x - 1

Move

9

to the right side

x^{2} + 10 x = x^{2} + 8 x - 10

Subtract

x^{2} + 8 x

from both sides

x^{2} + 10 x - (x^{2} + 8 x) = x^{2} + 8 x - 10 - (x^{2} + 8 x)

Simplify

2 x = - 10

Divide both sides by

2

x = - 5

\frac{x - 5}{3} = \frac{x + 9}{5}

30 + 50 e - 0.2 x = 40

x, 5 x - 3 y = - 30

- x = \frac{3}{2} + \frac{3}{5} (- x - 1) + 5 x

x, a x + 3 b = 2 f

What is the answer to (x+9)(x+1)=x(x+8)-1 ?
The answer to (x+9)(x+1)=x(x+8)-1 is x=-5
Solve for x: (x+9)(x+1)=x(x+8)-1
The solution is x=-5