If x - 12y = -210 and x - 6y = 90, then x =?

 If x - 12y = -210 and x - 6y = 90, then x =?

Answer:


x = 210


y = 70/6


Step-by-step explanation:


x - 12y = -210 ----------(1)


x -  6y = 90 --------(2)


x = 90 + 6y


x in (1)


90 + 6y - 12y = -210


12y - 6y = 210 - 90


6y = 70


y = 70/6


now y in x


x = 90 + 6*70/6


  = 90+70


x  = 210


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