Question

1) 2x=14
2) 3x+3=x+15
3) 4x+6=5x+9
4) 2x+15=x-20
5) 6x=12
6) 2(x+3)=3x+7(x+4)

Answer 1

1) 2x=14
x = 14/2
x = 7

2) 3x+3=x+15
3x - x = 15 - 3
2x = 12
x = 12/2
x = 6

3) 4x+6=5x+9
4x -5x = 9 -6
-x = 3
x = 3/ -1
x = -3

4) 2x+15=x-20
2x - x = 20 - 15
x = 5

5) 6x=12
x = 12/6
x = 2

6) 2(x+3)=3x+7(x+4)
2x + 6 = 3x + 7x + 28
6 - 28 = 3x + 7x -2x
22 = 8x
x = 22/8
x = 2,75