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OpenStudy (anonymous):
2x+x+15+90=180
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OpenStudy (anonymous):
x=25
OpenStudy (angela210793):
3x=75 x=25
OpenStudy (katrinakaif):
3x + 15 + 90 = 180 3x + 105 = 180 3x = 180 - 105 3x = 75 x = 25
OpenStudy (anonymous):
2x + x = 180 - 15 - 90 --> 3x = 180 - 105 --> 3x = 75 --> x = 25
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