(x-40)+(x+10)=90 what is the x value?
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X-40+x+10 = 90
2x -30 = 90
2x = 90 + 30
2x = 120
X= 120/2
X = 60
2x -30 = 90
2x = 90 + 30
2x = 120
X= 120/2
X = 60
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