Solving Equations with Brackets

Question 1:

7x+5=42
x =1

Question 2:

9x12=50
x =1759

Question 3:

12x+4=9
x =314

Question 4:

43x+4=31
x =114

Question 5:

12x4=10
x =456

Question 6:

52x5=1
x =235