Tìm X
1 . Tìm X
a) 71 - (33 + x) = 26
b) ( x + 73) - 26 = 76
c)45-(x+9)=6
đ) 89-(73-x)=20
e)(x+7)-25=13
f)198-(x+4)°120
g)140:(x-8)=7
h)4×(x+41)=400
i)11×(x-9)=77
j)5×(x-9)=350
k)2×x-49=5×9
l)200-(2.x+6)=64
m)2.(x-51)=2.8+20
n)450:(x-19)=50
o)4.(x-3)=48
p)135-5.(x+4)=35
q)25+3.(x-8)=106
r)9.(x+4 )-25=20