if 3 X + 18 degree and 2 X + 25 degree supplementary find the value of x
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3x + 18 + 2x + 25 = 180°
5x + 43 =180°
5x =137
x = 137/ 5
x = 27.4
5x + 43 =180°
5x =137
x = 137/ 5
x = 27.4
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we know that supplementary angles have a sum of 180
=>3x+18+2x+25=180
add like terms
5x+43=180
5x=180-43
5x=137
x=137/5=27.4
=>3x+18+2x+25=180
add like terms
5x+43=180
5x=180-43
5x=137
x=137/5=27.4
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