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3 years ago

Give the value of x. Explain how you got your answer OR which theorem you used.

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

5 0

100+75+70+x= 360° (sum of interior angles of quadrilateral)

x= 360-245= 115°

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Solve the system of equations

kaheart [24]

Answer:

x=-12,y=3

Step-by-step explanation:

1/2x+6y=12

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since y=x+15

substitute y in first equation, we have

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open the bracket

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x/2+6x= -78

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