9/10 times a number plus 6 is 51
Let the required number be "n"Then the equation becomes9n/10 + 6 = 519n/10 = 45To eliminate 9/10,We multiply both sides with 10/9,Therefore, n = 45 x (10/9)Thus, n = 50The number is 50
n-the number\(\dfrac{9}{10}\cdot n+6=51\ \ \ \ \ \ |subtract\ 6\ from\ both\ sides\\\\\dfrac{9}{10}n=45\ \ \ \ \ \ |multiply\ both\ sides\ by\ 10\\\\9n=450\ \ \ \ \ |divide\ both\ sides\ by\ 9\\\\\boxed{n=50}\)
