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2 years ago

I need this solved please

Mathematics

2 answers:

ss7ja [257]2 years ago

8 0

Answer:

x=23

y=128

Step-by-step explanation:

98=2x+3x-17

98=5x-17

115=5x

x=23

3x-17+y=180

3(23)-17+y=180

69-17+y=180

y=128

ss7ja [257]2 years ago

7 0

Answer:

x = 23

y = 128

Step-by-step explanation:

Theorem:

The measure of an exterior angle of a triangle is equal to the sum of the measures of its remote interior angles.

98 = 2x + 3x - 17

115 = 5x

x = 23

Angles 3x - 17 and y form a linear pair, so they are supplementary.

3x - 17 + y = 180

3(23) - 17 + y = 180

69 - 17 + y = 180

52 + y = 180

y = 128

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