Question

Someone plz help me with these problems

Answer 1

1) X= 15
6x + 10 - 3x = 55
3x + 10 = 55
 3x = 45
x = 15
2) X = 2
4x + 12 - 2x = 16
2x + 12 = 16
2x = 4
x = 2
3) X=10
9x + 12 - 3x = 72
6x + 12 = 72
6x = 60
X = 10

Answer 2

1) 15
2) 2
3) 10

The images show how to solve it, but if you want a more in depth explanation, please tell me~