Question

resolvati :a)2x + 4 =10 b) 6x= 108 c)5x-7=8 d) x:7=11 e) 19-x =10 f) 9-3x=4 helppp! multumesc!!

Answer 1

a) 2x+4=10  2x=10-4  2x=6  x=6:2  x=3
b) 6x=108    x=108:6   x=18
c) 5x-7=8     5x=8+7   5x=15  x=15:5 x=3
d) x:7=11   x=11x7    x=77
e) 19-x=10 19-10=x  x=9
f)  9-3x =4  9-4=3x  3x=5  x=5/3

Answer 2

a) 2x + 4 = 10
2x = 10 - 4
2x = 6
x = 6 : 2
x = 3

b) 6x = 108
x = 108 : 6
x = 1 8

c) 5x - 7 = 8
5x = 8 + 7
5x = 15
x = 15 : 5
x = 3

d) x : 7 = 11
x = 11 × 7
x = 77

e) 19 - x = 10
D - S = d
S = D - d
x = 19 -10
x = 9

f) 9 - 3x = 4
- 3x = 4 - 9
- 3x = - 5
x = -5 : -3
x = 1,(6)