Answer:
a) x = -22

b) x = 35
Explanation:
a) x = -22

Move 201 to the other side by subtracting it from both sides:
9x = -201
Divide both sides by 9:
x= -22

b) x = 35
Move 140 to the other side by subtracting it from both sides:
4x = -140
Divide both sides by 4:
x = 35