Q2. Find x and each angle.
(9x +16)
(6x +15)
(19x +3)

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Collect like terms

Subtract sides 3

Subtract sides 15x

Divide sides by 4

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Measure of each angle :

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answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°