a) 16x = 32x = 320 / 1x = 20
b) 10t = 72t = 720 / 1t = 72
c) 10a - a = 819a = 81a = 810 / a = 90
d) 15b - 6b = 409b = 40b = 400 / b = 44.44 (approximately)
a) 16x = 32
x = 320 / 1
x = 20
b) 10t = 72
t = 720 / 1
t = 72
c) 10a - a = 81
9a = 81
a = 810 /
a = 90
d) 15b - 6b = 40
9b = 40
b = 400 /
b = 44.44 (approximately)