Question

ayudaaaa...........................

Answer 1

Explicación paso a paso:

Sacar mcm : es 24

8x3= 24

3x8=24

12x2=24

3(7x-5)+ 8( 2x+1) = 2(2x-5)

21x - 15 + 16x + 8 = 4x - 10

21x + 16x - 4x = - 10 + 15 - 8

33x = - 3

X = - 3 / 33

X= - 1/11

Answer 2

Explicación paso a paso:

$\frac{7x - 5}{8} + \frac{2x + 1}{3} = \frac{2x - 5}{12} \\ \frac{3(7x - 5) + 8(2x + 1)}{24} = \frac{2x - 5}{12} \\ \frac{21x - 15 + 16x + 8}{24} = \frac{2x - 5}{12} \\ \frac{37x - 7}{24} = \frac{2x - 5}{12} \\ 37x - 7 = \frac{24(2x - 5)}{12} \\ 37x - 7 = 2(2x - 5) \\ 37x - 7 = 4x - 10 \\ 37x - 4x = - 10 + 7 \\ 33x = - 3 \\ x = \frac{ - 3}{33} \\ x = - \frac{1}{11}$