Addition
a + 13 = 23
What is 10
d - 7 = 19
What is 26
7x = 63
What is 9
x/4 = 14
What is 56
x - 6.9 = 9.99
What is 3.09
n + 18 = 24
What is 6
k - 83 =38
What is 121
5e = 400
What is 80
x/6 = 6
What is 36
5.6 = 0.8x
What is 7
x + 1/3 = 2/3
What is 1/3
x - 2/5 = 1/5
What is 3/5
2/5x = 3/4
What is 15/8
28 = a/13
What is 364
c/0.29 = 5.5
What is 1.595
3/4 = c + 1/2
What is 1/4
a - 1/3 = 5/6
What is 6/6 or 1
1/4y = 1/8
What is 1/2
80 = x/15
What is 1200
0.12 = y/0.12
What is 0.0144