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3 years ago

What is the value of x?

Mathematics

2 answers:

creativ13 [48]3 years ago

8 0

Since all triangle angles add up to 180*, the equation is 180=100+4x-4.
this simplifies to x=21

slega [8]3 years ago

7 0

3x+x-4+100 = 180
4x +96 =180
4x = 180 -96
4x = 84
x=84/4
x=21

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