You can put this solution on YOUR website! x = father age now
y = son age now
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x = y + 28
x + 11 = 3(y + 11)
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put the system of linear equations into standard form
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x - y = 28
x + 11 = 3y + 33
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x - y = 28
x - 3y = 22
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solution:
x = father age now = 31
y = son age now = 3
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