Question

a. 7x + 4 = 2x + 19-171
b.5X - 9 + x = 15 + 3x
c. 7 + 8x = x + 28 + 4x
d. 3(x + 1) - 2 = 19
e. 5x + 2(x - 4) = 13
f. 9x + 4 = 5(X + 8)​

Answer 1

Respuesta:

a)x=-156/5=-31,2

b)x=8

c)x=7

d)x=6

e)x=3

f)x=9

Explicación paso a paso:

simplificacion de terminos semejantes

Answer 2

Explicación paso a paso:

1. $7x + 4 = 2x + 19 - 171 \\ 7x + 4 = 2x - 152 \\ 5x = - 156 \\ x = - 31.2$
2. $3(x + 1) - 2 = 19 \\ 3x + 3 - 2 = 19 \\ 3x = 18 \\ x = 6$
3. $7 + 8x = x + 28 + 4x \\ 3x = 21 \\ x = 7$
4. $3(x + 1) - 2 = 19 \\ 3x + 3 = 21 \\ 3x = 18 \\ x = 6$
5. $5x + 2(x - 4) = 13 \\ 5x + 2x - 8 = 13 \\ 7x = 21 \\ x = 3$
6. $9x + 4 = 5(x + 8) \\ 9x + 4 = 5x + 40 \\ 4x = 36 \\ x = 9$