1) 4x + 5x - 5 = 949x - 5 = 949x = 99x = 11
2) 9x - x + 10 = 908x + 10 = 908x = 80x = 10
3) 15y - y - 16 = 8214y - 16 = 8214y = 98y = 7
4) 10(40 + x) = 480400 + 10x = 48010x = 80x = 8
1) 4x + 5x - 5 = 94
9x - 5 = 94
9x = 99
x = 11
2) 9x - x + 10 = 90
8x + 10 = 90
8x = 80
x = 10
3) 15y - y - 16 = 82
14y - 16 = 82
14y = 98
y = 7
4) 10(40 + x) = 480
400 + 10x = 480
10x = 80
x = 8