7x = 63
What is 9
x + 66.09 = 102.8
What is 36.71
n + 8 = -14
What is -22
k - 83 =121
What is 204
1/2 = c + 1/6
What is 1/3 (or 2/6)
a - 2/7 = 3/14
What is 1/2 (or 7/14)
3/5x = 3/40
what is 1/8 (or 15/120)