Set up the prolem as x + 9 = 16 (with x representing the unknown number) and solve: x + 9 = 16 (then subtract 9 from each side of the equation to solve for x) x = 7 Prove the answer by substiting 7 for x: x + 9 = 16 7 + 9 = 16 16 = 16
0.5625/9 = 1/16 x/9 = 1/16 ⇒ x = 9 x 1/16 = 9/16 = 0.5625
To solve for X in the equation "X over 9 equals 1 over 16," we can cross multiply. This gives us 16X = 9. Dividing both sides by 16 gives us X = 9/16.
16 x 9 x 5 x 7 = 5040
9:2 :: x:16 We note that 16 = 2 x 8 So to bring to equivalence . the 'x' is 9 X 8 = 72 Hence 9:2 :: 72:16 Note the use of colons for 'is to', and 'as'.
the answer is 16. 16 x 6 = 96 16 x 9 = 144 the answer is 16. 16 x 6 = 96 16 x 9 = 144
9 = 1 x 3 x 3 16 = 1 x 4 x 4 The only common factor of 9 and 16 is 1.
(21 + 7) x (9-4) - 16 (28) x (5) - 16 140 - 16 124
9 x 16 = 144
7
16
Let the number be x and so if x+16 = 9 then the value of x is -7