a: \(\Leftrightarrow x-32=0\)
hay x=32
b: \(\Leftrightarrow x=63\)
a) (x - 32) . 15 = 0
x - 32 = 0 . 15
x - 32 = 0
x = 0 + 32
x = 32
b ) 315 : x = 5
x = 315 : 5
x = 63
c) 200 - 3x = 50
3x = 200 - 50
3x = 150
x = 150 : 3
x = 50
d) (x - 12) + 14 = 2.3
(x - 12) + 14 = 6
x - 12 = 6 - 14
x - 12 = -8
x = -8 + 12
x = 4
a)x-32=0:15
x =0+32
x =32
b)x=315:5
x=63
c)3x=200-50
3x=150
x=150:3
x=50
c, 200 - 3x = 50
3x = 200 - 50
3x = 150
x = 150 : 3
x = 50
d, (x-12) + 14 = 2.3
(x-12) + 14 = 6
(x-12) = 6 - 14
(x-12) = -8
x = -8 + 12
x = 4