B. 3X(X+2) -5 =13
3X =6 = 13+5
3X = 18 -6
3X = 12
X- 12:3=4
C.3(2X-1)-32 = 73
6X-3 = 73 +32
6X -3 = 105
6X = 105 =3
6X = 108, X = 108:6= 18
D. 3( 2X - 1) =32 = 77
6X - 3 = 77 - 32
6X-3 = 45
6X = 45 +3
6X = 48
X = 48 :6 =8
G. 7X + 5 (X +3) -10X - X=20
7X +5X +15 -10X - X =20
12X -11X= 20 -15
X = 5
F. 2(X+5) - X +3(X-1)= 35
2X +10-X +3X -3 =35
2X +3X - X = 35 -10+3
4X = 28
X = 7