Question

proszę o pomoc z góry dzięki​

Answer 1

Odpowiedź:

1.

2x + 8 = 4  

2x = 4 - 8 = - 4   /2

x = -2    - B

6(x-2) = 12

6x - 12 = 12

6x = 12 + 12 = 24    /6

x = 4   - C

2.

x + 2 = - 1

x = -1  - 2 = - 3

B.  3x = - 3       / 3

x = - 3

3.

a)  y - 2

b)  a + t

c) [tex]\frac{w}{5}[/tex]

d) 3y + 15

4.

[tex]2\frac{1}{2} + x = 15\\x = 15 - 2,5 = 12,5[/tex]

4x = 11         /4

x = [tex]\frac{11}{4} = 2\frac{3}{4}[/tex]

[tex]\frac{1}{5} x= -3[/tex]      /*5

x = - 15

4 - x = -2

-x = -2 - 4 = - 6          /-1

x = 6