Need help on #6 step by step I'm so confused how this works I always get stuck

Mathematics

1 answer:

inna [77]3 years ago

6 0

To find the variable x, set the two outside equations equal to each other because all sides are equal
x+13=3x+3
13=2x+3
10=2x
x=5

then to find h, you set the equation equal to 90 because that's how many degrees it is
2h-45=90
2h=135
h=67.5

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