9t+4t-286=0
9t + 4t = 0 + 286
13t = 286
t = 22
14x + 9x + 88 = 272
14x + 9x = 272 – 88
23x = 184
x = 8
25x-16x+54=162
25x – 16x = 162 – 54
9x = 108
x = 12
9t+4t-286=0
9t + 4t = 0 + 286
13t = 286
t = 22
14x + 9x + 88 = 272
14x + 9x = 272 – 88
23x = 184
x = 8
25x-16x+54=162
25x – 16x = 162 – 54
9x = 108
x = 12