Question

(x-7) (x-8) = (x-5) (x-4)​

Answer 1

Answer:

x=6

Step-by-step explanation:

(x-7)(x-8)=(x-5)(x-4),

x^2-8x-7x+56=x^2-4x-5x+20,

x^2-15x+56=x^2-9x+20,

x^2-8x-7x+56=x^2-9x+20,

x^2-x^2-8x+9x-7x+56-20=0,

-6x+36=0,

6x=36,

x=36/6,

x=6

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