+) 4x - 12 -11 - x - 58 = 0
3x - 81 = 0
3x = 81
x = 27
+) 5x - 2 + 3x -15 - x = 0
7x - 17 = 0
7x = 17
x = 17/7
+) 4x - 44 - 6x -15 + x = 0
-x -59 = 0
-x = 59
x = -59
5x-2+3(x-5)=x
5x-2+3x-15=x
5x+3x-x=15+2
7x=17
x=17/7
vậy x=17/7
4(x-3)-(11+x)=58 5x-2+3(x-5)=x 4(x-11)-2(3x)=15-x
4x-12-11-x=58 5x-2+3x-15-x=0 4x-44-6x-15+x=0
3x-23=58 7x-17=0 -x-59=0
3x=81 7x=17 -x=59
x=27 x=-17/7 x=-59
a) 4 (x-3) - (11+x) = 58
4x - 4.3 - 11 - x = 58
3x - 12 - 11 = 58
3x - 1 = 58
3x = 59
x = \(\frac{59}{3}\)
b) 5x - 2 + 3( x-5 ) = x
5x - 2 + 3x - 15 = x
7x = 15 + 2
7x = 17
x = \(\frac{17}{7}\)
c) 4( x-11 ) - 2 ( 3x ) = 15 - x
4x - 44 - 6x = 15 - x
-x = 59
x = -59