a) 71 – (33 + x) = 26
b) (x + 73) – 26 = 76
c) 45 – (x + 9) = 6
d) 89 – (73 – x) = 20
e) (x + 7) – 25 = 13
f) 198 – (x + 4) = 120
g) 2(x- 51) = 2.23 + 20
h) 450 : (x – 19) = 50
i) 4(x – 3) = 72 – 110 j) 140 : (x – 8) = 7
k) 4(x + 41) = 400
l) 11(x – 9) = 77
m) 5(x – 9) = 350
n) 2x – 49 = 5.32
o) 200 – (2x + 6) = 43
p) 135 – 5(x + 4) = 35
q) 25 + 3(x – 8) = 106
r) 32(x + 4) – 52 = 5.22
Loga
Sinh Học lớp 12
