a) 2(x - 3) - 3 = x - 2
b) 3(2x + 1) - 10 = 2(x - 3) + 11
c) 2(2x - 3) + 19 = 3(x + 7) - 10
d) 2(x + 3) - 15 = x + 1
e) 4x + 17 = 3(x + 1) + 21
f) 3(x + 5) - 11 = 2(x + 2) + 3
g) 4x + 2(x - 5) = 3(x + 1) + 8
Am nevoie urgent!!!

Răspuns :

Salutare!

a) 2(x - 3) - 3 = x - 2

2x - 6 - 3 = x - 2

2x - x = -2 + 6 + 3

x = 7

b) 3(2x + 1) - 10 = 2(x - 3) + 11

6x + 3 - 10 = 2x - 6 + 11

6x - 2x = -6 + 11 + 10 - 3

4x = 12

x = 12 : 4

x = 3

c) 2(2x - 3) + 19 = 3(x + 7) - 10

4x - 6 + 19 = 3x + 21 - 10

4x - 3x = 21 - 10 + 6 - 19

x = -2

d) 2(x + 3) - 15 = x + 1

2x + 6 - 15 = x + 1

2x - x = 1 + 15 - 6

x = 10

e) 4x + 17 = 3(x + 1) + 21

4x + 17 = 3x + 1 + 21

4x - 3x = 1 + 21 - 17

x = 5

f) 3(x + 5) - 11 = 2(x + 2) + 3

3x + 15 - 11 = 2x + 4 + 3

3x - 2x = 4 + 3 + 11 - 15

x = 3

g) 4x + 2(x - 5) = 3(x + 1) + 8

4x + 2x - 10 = 3x + 3 + 8

4x + 2x - 3x = 3 + 8 + 10

3x = 21

x = 21 : 3

x = 7