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galina1969 [7]
2 years ago
14

Write the equation you would use to solve for x. Then solve. ​

Mathematics
1 answer:
sammy [17]2 years ago
7 0

Answer:

x=12

Step-by-step explanation:

we know that the sum of the angles in a triangle is 180 degrees

to find x we have to calculate the sum of the angles

(10x-11)+(3x-2)+(3x+1)=180

10x-11+3x-2+3x+1=180

16x-12=180

16x=180+12

16x=192

x=192/16=12

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