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Using adding and substitution to find the value of x for the set of equations x-y=120 x+y=150

Using adding and substitution to find the value of x for the set of equations x-y=120 x+y=150
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Using adding and substitution to find the value of x for the set of equations x-y=120 x+y=150

User Ivanatpr
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X= 135 and Y = 15. Hope that helps!
User Will Gordon
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