Answer :

Izzy1974

Answer:

Step-by-step explanation:

The triangle should equal 180 degrees. You already have 84+60= 144

Take that 144 with the equation of the other angle. 144-180 is 36

5x+1=36 subtract 1 from both  sides

5x=35 divide by 5

x=7

check:

36 + 84+60= 180

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