Question

7.(×-2)=3.(×+2)

4.(8-3×)-12=-2.(2+3×)
ayuda ecuaciones en ir ​

Answer 1

Explicación paso a paso:

$7 \times (x - 2) = 3 \times (x + 2) \\ 7x - 14 = - 3x - 6 \\ 7x + 3x = - 6 + 14 \\ 10x = 8 \\ x = 8 \div 10 \\ x = \frac{4}{5}$

$4 \times (8 - 3x) - 12 = - 2 \times (2 + 3x) \\ 32 - 12x - 12 = - 4 - 6x \\ 20 - 12x = - 4 - 6x \\ - 12x + 6x = - 4 - 20 \\ - 6x = - 24 \\ x = - 24 \div ( - 6) \\ x = 4$