4a = b + 63a - 2b = 2

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first you need to solve for one variable for either equation.once you get either a= or b= you place it in place of either a or b(whichever you solved for) and then solve. now you should have what one variable = and just plug that variable into either equation to get the other variable and you got your answer.a=2, b=2

a=2b=2