Mathematics: Solve for x in the diagram below. x 3xº 100°

Step-by-step explanation:For , we have two cases:Therefore, for , we have the following cases:Solving, we have:.Therefore,...

Solve for x in the diagram below. x 3xº 100°

angel34emb

16.02.2021

Ummm I think x=80

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colrow1968

16.02.2021

x+3x+100°=180°(straight line is 180°)

4x+100°=180

4x=180°-100°

4x=80

x=80/4

x=20

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hijrjdkfjd

23.02.2020

$x=-1\text{ or }x=11$

Step-by-step explanation:

For a=|b| , we have two cases:

$\begin{cases}a=b,\\a=-b\end{cases}$

Therefore, for 18=|15-3x| , we have the following cases:

$\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}$

Solving, we have:

$\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}$ .

Therefore,

$\implies \boxed{x=-1\text{ or }x=11}$

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