To solve each equation:
1) 7x - 15 = 67x = 6 + 157x = 21x = 21 / 7x = 3
2) 20 / (x - 9) = 420 = 4(x - 9)20 = 4x - 3656 = 4xx = 56 / 4x = 14
3) (x - 3) / 5 = 30x - 3 = 5 * 30x - 3 = 150x = 150 + 3x = 153
So, the solutions to the equations are:1) x = 32) x = 143) x = 153
To solve each equation:
1) 7x - 15 = 6
7x = 6 + 15
7x = 21
x = 21 / 7
x = 3
2) 20 / (x - 9) = 4
20 = 4(x - 9)
20 = 4x - 36
56 = 4x
x = 56 / 4
x = 14
3) (x - 3) / 5 = 30
x - 3 = 5 * 30
x - 3 = 150
x = 150 + 3
x = 153
So, the solutions to the equations are:
1) x = 3
2) x = 14
3) x = 153