Addition
x + 4 = 25
x = 21
x - 2 = 6
x = 8
9x = -27
x = -3
y/6 = 2
y = -12
m + 3.7 = 2.4
m = -1.3
a + 13 = 10
a = -3
d - 7 = -9
x = -2
-7x = -63
x = 9
x/4 = -14
x = -56
x - (-66.09) = 102.8
x = 36.71
n + (-8) = -14
x = -6
k - (-83) =121
x = 38
-5e = -400
e = 80
x/6 = -6
x = -36
-5.6 = 0.8x
x = -7
x + 36 = -100
x = -136
x - 327 = -665
x = -338
-11x = 275
x = -25
-28 = a/-13
a = 364
c/-0.29 = 5.5
c = -1.595
-27 = c + 27
x = -56
a - (-163) = -392
x = -555
-21y = -756
y = 36
-80 = x/15
x = -1200
0.12 = y/0.12
y = 0.0144