Sticking to integers: 7 x 9 = 63 3 x 21 = 63 1 x 63 = 63
-1 x 63 1 x (-63) -3 x 21 3 x (-21) -7 x 9 7 x (-9)
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1
7 x 9 = 63... 63 x 5 = 315
6/7 x 9/9 = 54/63 80/9 x 7/7 = 560/63 54/63 + 560/63 = 614/63
X x 9 = 63 Algebraically rearrange X = 63/9 X = 7
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1.
-2
Sticking to integers: 7 x 9 = 63 3 x 21 = 63 1 x 63 = 63
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1
9 x 7 = 63 so the answer is 7
-1 x 63 1 x (-63) -3 x 21 3 x (-21) -7 x 9 7 x (-9)
7 x 9 = 63 3 x 21 = 63 Therefore, the LCM of 9 and 21 is 63.
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1
If you mean 6x+9 = 63 then the value of x works out as 9
63 is the lowest common denominator of 7 and 9 7 x 9 = 63 9 x 7 = 63
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1.