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3 years ago

Find the value of x.

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

<u>Step-by-step explanation:</u>

58° + 42° + x = 180° -- (Δ sum property)

100° + x = 180°

x = 180° - 100°

x = 80°

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RUDIKE [14]3 years ago

3 0

Answer:

80°

Step-by-step explanation:

42° + 58° + x = 180° [Angle sum property of triangle]

=> 100 + x = 180

=> x = 180 - 100

=> <u>x = 80 (Ans)</u>

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Solve the equation 14y+82=6x-20 for x if y is 25

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Answer:

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Step-by-step explanation:

14y+82=6x-20

y=25

Sub y=25 into 14y+82=6x-20

14y+82=6x-20

14(25)+82=6x-20

Calculate as follows:

14(25)+82=6x-20

350+82=6x-20

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Add twenty to both sides:

432+20=6x-20+20

452=6x-0

452=6x

Divide both sides by 6

452=6x

452/6=6x/6

452/6=x

x= 226/3 or 75.33333333333333333333333333333

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