After the complement of an acute angle plus 20 degrees, it is equal to three times of the remaining angle, the degree of the angle? solve equations

Let this angle be x degrees
Then the complement is 180-x
The remainder is 90-x
So 180-x + 20 = 3 (90-x)
200-x=270-3x
3x-x=270-200
2x=70
x=70÷2=35
A: the angle is 35 degrees

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