Question

I need big help someone plz answer.

Answer 1

x = 2

z = 89

Explanation:

13x + 65 = 91

subtract 65

13x = 26

divide by 13

x = 2

91 + z = 180

subtract 91

z = 89

hopefully this helps you

Answer 2

• x = 2
• z = 89

Explanation:

The angle marked z and the one marked 91° are a "linear pair", so are supplementary.

z° = 180° -91° = 89°

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The angle marked (13x +65)° and the one marked 91° are "vertical" angles, so are congruent.

13x +65 = 91

13x = 26 . . . . . . . subtract 65

x = 2 . . . . . . . . . . divide by 13

The variable values are ...

• x = 2
• z = 89