6(5 + x)
4x + 18
2(2x+9)
3x= 9
x= 3
-3 (2f +g)
-6f - 3g
25mn - 40np
5n(5m-8p)
2x- 7 = 3
x= 5
2(2x+1) - 3
9z(r+5s) - 5z(r+5s)
(9z-5z)(r+5s)
3x-1= -x+ 7
x= 2
4a - (5a -3)
10(a+2b) -25y(a+2b)
(10-25y)(a+2b)
x/3 = 4
x= 12