1) -7(2 - 3x) = 56-14 + 21x = 5621x = 56 + 1421x = 70x = 70/21x = 10/3
2) (5 + 7a) * 15 = -3075 + 105a = -30105a = -30 - 75105a = -105a = -105/105a = -1
1) -7(2 - 3x) = 56
-14 + 21x = 56
21x = 56 + 14
21x = 70
x = 70/21
x = 10/3
2) (5 + 7a) * 15 = -30
75 + 105a = -30
105a = -30 - 75
105a = -105
a = -105/105
a = -1