3 years ago

Set up an equation and solve for x

Mathematics

1 answer:

k0ka [10]3 years ago

7 0

Answer:

x = -10

Step-by-step explanation:

verticle angles are congruent

80 + x = 70

Subtract 80 from both sides

x = -10

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-------------------------------------------------------------

$|n| \leq n$

For $n\leq0$

$|n|\leq n\Leftrightarrow -n\leq n \Rightarrow 2n\geq 0 \Rightarrow n\geq 0\\
n\geq 0 \wedge n\leq 0 \Rightarrow n=0$

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n\in \mathbb{R} \wedge n>0 \Rightarrow n>0$

$n>0 \vee n=0 \Rightarrow \boxed{x\geq0}$

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