Answer:
18
Step-by-step explanation:
20/2 + 8
Divide the numerator and denominator by 2
20 / 2
2 / 2
Divide the numbers
10
2 / 2
=
10 / 1
Any expression divided by 1 remains the same
10 + 8 = 18
What you can put is an obtuse 108 degrees
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The answer is x-1 hope that helps not sure if it does
Standard: x=4
implicit: x-4=0