svftbirlem14 svftbirlem14

13-05-2020
Mathematics

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anyone know the answer:(

anyone know the answer class=

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marapuppetjunior marapuppetjunior

13-05-2020

Answer: X = 8

Step-by-step explanation:

You should already know that the angle is a 90 degree angle. So, you can write the equation: (7x+1) + (3x+9) = 90

Put all the numbers without variables to the right of the equation so it becomes:

7x + 3x = 90 - 9 - 1

10x = 80

10(8) = 80

80 = 80

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