You can put this solution on YOUR website! X+(X+30)=180
2X=180-30
2X=150
X=150/2
X=75 ANSWER FOR THE SMALLER SUPPLEMENTAL ANGLE.
75+30=105 FOR THE LARGER ANGLE.
PROOF
75+105=180
180=180
You can put this solution on YOUR website! what is an angle's measure is 30 degrees more than its supplement.
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Let the angle be "x".
The supplement = 180-x
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EQUATION:
x = 180-x+30
2x = 210
x = 105 degrees
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Cheers,
Stan H.