Assuming that the question is find x in x5=1610; the answer is 4.378901
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x5 = x3 times x2. In this case x3 = 64 so x = cube root of 64 ie 4
x5 is an expression, not an equation nor an inequality. An expression cannot be solved.
1,565 = x5 1,5651/5 = (x5)1/5 1,5651/5 = x5/5 1,5651/5 = x 4.3541 = x
11x5=55 !
5x-9Substitute 4 in for x5(4)-9=Solve.9-9=0the answer is zero.The answer is not zero you added when you were supposed to multiply so the real answer is 11.