Toán Lớp 6: a) 58 + 7x = 100 b) 5x – 7 = 28 c) x – 56 : 4 = 16 d) 101 + (36 – 4x) =105 e) ( x – 12) : 12 = 12 f) (3.x – 2 4 ) . 73 = 2.74 g) 71 – (

Toán Lớp 6: a) 58 + 7x = 100
b) 5x – 7 = 28
c) x – 56 : 4 = 16
d) 101 + (36 – 4x) =105
e) ( x – 12) : 12 = 12
f) (3.x – 2
4
) . 73 = 2.74
g) 71 – (33 + x) = 26
h) 45 – (x + 9):2 = 6
i) 2. (x + 7) – 25 = 13
k) 2 (x – 51) = 2.23 + 20
l) 450 : (x – 19) = 50
m) 100 – (x – 3) : 2 = 72 – 1
10
n) 140 : (x – 8) = 7
o) 4 (x + 41) = 400
p) 5 (x – 9) = 350
q) 2x – 49 = 5 . 3
2
r) 200 – (2x + 6) = 43
s) 135 – 5.(x + 4) = 35