90+b=2x70
90+b=140
90-90+b=140-90
b=50
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X + 35 = 90, therefore X = 90 - 35, so X = 55.
45
Oh, that's a happy little math problem! If you have a number that, when added to 90, equals 180, you're looking for the missing piece to complete the puzzle. In this case, that number is 90, because 90 + 90 equals 180. Just like adding a touch of color to bring a painting to life, you've found the perfect balance to make the equation complete.
v
Angle A = 90 degrees = 5x + 50 So 5x = 40 or x = 8