When 15 is subtracted from the measure of an angle, the result is the measure of a right angle. what is the measure of the original angle? 115° 75° 85° 105°

1.677

step-by-step explanation:

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answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb