Question

ayuda con esto
ecuaciónes en parentesis (propiedad distributiva)​
con explicación plz

Answer 1

Respuesta:

$a)3(x + 1) = 36 \\ 3x + 3 = 36 \\ 3x = 36 - 3 \\ 3x = 33 \\ x = \frac{33}{3} \\ x = 11$

$b)6(x + 2) - 2x = 20 \\ 6x + 12 - 2x = 20 \\ 4x + 12 = 20 \\ 4x = 20 - 12 \\ 4x = 8 \\ x = \frac{8}{4} \\ x = 2$

$c)7(x - 2) = 14 + 3x \\ 7x - 14 = 14 + 3x \\ 7x - 3x = 14 + 14 \\ 4x = 28 \\ x = \frac{28}{4} \\ x = 7$

$d)5(2x + 3) + 4 = 39 \\ 10x + 15 + 4 = 39 \\ 10x + 19 = 39 \\ 10x = 39 - 19 \\ 10x = 20 \\ x = \frac{20}{10} \\ x = 2$

$e)20 + 4(x - 2) = x + 21 \\ 20 + 4x - 8 = x + 21 \\ 12 + 4x = x + 21 \\ 4x - x = 21 - 12 \\ 3x = 9 \\ x = \frac{9}{3} \\ x = 3$

$f)6(x - 5) = 2(x + 1) \\ 6x - 30 = 2x + 2 \\ 6x - 2x = 2 + 30 \\ 4x = 32 \\ x = \frac{32}{4} \\ x = 8$