Hillary needs to know if the triangle shown is a right triangle. Which equation should she use to help?
5
4
3
0 42 + 32 = 52
O 42 +52 = 32
O V3+ 14 = 15
042 – 32 = 52
PLEASE HELP

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

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