if X square + 1 by x square is equal to 7.find the value of 3 x square minus 3 by x square
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Answer:very silly question but your answer is 21
Step-by-step explanation:as
x square + 1 by x square = 7
multiply 3 both side
3(x square + 1 by x square) = 3(7)
3x square + 3 by x square = 21
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