a + x = c
d-(-3)2 = 21
d=30
5x = 35
x = 7
x/4 = 7
x = 28
3x + 15 = 24
x = 3
1/6 +2/7
19/42
x-(-2)^3= 18
x=10
4x = 32
x=8
x/7=7
x=49
7x-2=-16
x=-2
2(x+4) = 12
x=2
x+3/7 = -2/3
x = -1 2/21
-3x=-12
x=4
-2x/3 = 10
x=-15
7-3x=25
x=-6
3(8-x)=15
x=3
21-x = -(5^2)
x=46
-8x = 48
x=-6
23-d/4=14
d=36
3b-4(2-2b)=25
b=3
4(8-2x)=48
x=-2
35+t-(1-3t)=10
t=-6
9t-11-(3t+5)=4+2t
t=5
17-(11-w/3)=-3
w=-27
-4t -7(3-2t)=9
t=3
1/3(33+6x)=5(2x-1)
x=2