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2x=12/:2
x=6
b) 5x+13=23/-13
5x=10/:5
x=2
c) 3x+11=41/-11
3x=30/:3
x=10
d) -2x-7=11/+7
-2x=18/:(-2)
x=-9
e) -5x+3=-12/-3
-5x=-15/:(-5)
x=3
f) -1,5x+2=9,5/-2
-1.5x=7.5/:(-1.5)
x=-5
2x=12......../:2
x=6
b)
5x+13=23............/-13
5x=10.........../:5
x=2
c)
3x+11=41..../-11
3x=30......./:3
x=10
d)
-2x-7=11.........../+7
-2x=18............/: (-2)
x=-9
e)
-5x+3=-12............../-3
-5x=-15............/ : (-5)
x=3
f)
-1,5x+2=9,5.........../-2
-1,5x=7,5.........../: (-1,5)
x=-5
2x+3=15
2x=15-3
2x=12/:2
x=6
b)
5x+13=23
5x=23-13
5x=10/:5
x=2
c)
3x+11=41
3x=41-11
3x=30/:3
x=10
d)
-2x-7=11
-2x=11+7
-2x=18/:(-2)
x=-9
e)
-5x+3=-12
-5x=-12-3
-5x=-15/:(-5)
x=3
f)
-1,5x+2=9,5
-1,5x=9,5-2
-1,5x=7,5/:(-1,5)
x=5