Question

x + 90 = 90 + 90

Answer 1

=90

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Answer 2

x + 90 = 90 + 90

x + 90 = 180

        x = 180 - 90

        x = 90

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Answer 3

x + 90 = 90+90

x + 90 = 180

x        =180 - 90

x        =90

Answer 4

x + 90 = 90 + 90

x + 90 = 180

x = 180 - 90

x = 90 

Answer 5

x + 90 = 90 + 90

x + 90 = 180

        x = 180 - 90

        x = 90

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ùi đó nha

Answer 6

x + 90 = 90 + 90

x + 90 = 180

x = 180 - 90

x = 90

K mk nha

Mk k lại

Answer 7

x+90=90+90

x+90=180

       =180-90

       =90