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natima [27]
3 years ago
12

Can anyone help with this?

Mathematics
2 answers:
slava [35]3 years ago
7 0

Exterior angle c = the sun of the two opposite interior angles a and b.

10x -23 = 5x -17 + 7x -26

Combine the right side:

10x -23 = 12x -43

Add 43 to both sides:

10x +20 = 12x

Subtract 10x from both sides:

20 = 2x

Divide both sides by 2

X = 10

Now you have x replace it in the equation for A:

A = 5x -27 = 5(10) -27 = 50-27 = 23

Angle A = 23 degrees.

Norma-Jean [14]3 years ago
6 0

Answer:

thats all i know so far. i dont know if you are adding or multiply but if adding then the answer is -647. if your multiplying then the answer is -5,651,100.

Step-by-step explanation:

A- (5x - 27)= -137

B-(7x - 26)= -182

C-(10x 23)= -230

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