You can put this solution on YOUR website! y=5x -126 when x is 3 times as great as y What is the value of x
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From:"x is 3 times as great as y" we have:
x = 3y
solving for y we get:
x/3 = y
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substitute the above into:
y=5x -126
x/3 = 5x -126
multiplying both sides by 3:
x = 15x -378
-14x = -378
x = -378/(-14)
x = 27