Question

Cat face: 7x{-9x[-7x(5-x)-8]-10}=-7

Answer 1

7 × { - 9 × [ - 7 × (5 - x) - 8] - 10} = - 7

- 9 × [ - 7 × (5 - x) - 8] - 10 = - 7 : 7 = - 1

-9 × [ - 7 × (5 - x) - 8] = - 1 + 10 = 9

- 7 × (5 - x) - 8 = 9 : (-9)

-7 × (5 - x) - 8 = - 1

- 7 × (5 - x) = - 1 + 8

-7 × (5 - x) = 7

5 - x = 7 : (-7)

5 - x = - 1

x = 5 + 1

x = 6
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