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
d=-2
-7x = -63
x= 9
x/4 = -14
x=-56
x - (-66.09) = 102.8
x=36.71
n + (-8) = -14
n=-6
k - (-83) =121
k=38
-5e = -400
e=80
x/6 = -6
x=-36
-5.6 = 0.8x
-7=x
x + 36 = -100
x=-136
x - 327 = -665
x=-338
-11x = 275
x=-25
-28 = a/-13
364=a
c/-0.29 = 5.5
c=-1.595
-27 = c + 27
-54=c
a - (-163) = -392
a=-555
-21y = -756
y=36
-80 = x/15
-1200=x
0.12 = y/0.12
0.0144=y