a) 16x = 320x = 320 / 16x = 20
b) 10t = 720t = 720 / 10t = 72
c) 10a - a = 8109a = 810a = 810 / 9a = 90
d) 15b - 6b = 4009b = 400b = 400 / 9b = 44.44 (approximately)
a) 16x = 320
x = 320 / 16
x = 20
b) 10t = 720
t = 720 / 10
t = 72
c) 10a - a = 810
9a = 810
a = 810 / 9
a = 90
d) 15b - 6b = 400
9b = 400
b = 400 / 9
b = 44.44 (approximately)