Question

c) -x-4=2
d) 3-x:2=15
e) 4x-6=6-2x
f) x:2-5=13
g) 5x-9=-14
h) x+4,5=9,5-4x

Answer 1

c) -x=2+4
-x=6
x= -6

d) x:2=3-15
x:2= -12
x= -12×2
x= -24

e) 4x+2x=6+6
6x=12
x=12:6
x=2

f) x:2=13+5
x:2=18
x=18×2
x=36

g) 5x= -14+9
5x= -5
x=-5:5
x= -1

h) x+4x=9,5-4,5
5x=5
x=5:5
x=1

Answer 2

c) -x = 2 + 4 =>-x = 6 => x = -6

d) 3 - x : 2 = 15 => x : 2 = 3 - 15 => x : 2 = -12 => x = -12·2 => x = -24

e) 4x - 6 = 6 - 2x =>4x + 2x = 6 + 6 => 6x = 12 => x = 2

f) x : 2 - 5 = 13 => x : 2 = 13 + 5 => x : 2 = 18 => x = 18·2 => x = 36

g) 5x - 9 = -14 => 5x = -14 + 9 =>5x = -5 => x = -5 : 5 => x = -1

h) x + 4,5 = 9,5 - 4x => x + 4x = 9,5 - 4,5 => 5x = 5 => x = 1