Question

e) x+2=3. (x + 2)
f) 4. (x–5)=x+4
g) x-3+2 (9+2x)=0​

Answer 1

Explicación paso a paso:

e) x + 2=3. (x + 2)

x + 2 = 3x + 6

2 - 6 = 3x - x

- 4 = 2x

- 2 = x

f) 4. (x–5)=x+4

4x - 20 = x + 4

4x - x = 4 + 20

3x = 24

x = 8

g) x-3+2 (9+2x)=0

x - 3 + 18 + 4x = 0

5x + 15 = 0

5x = - 15

X = - 3