Question

Ajudem eu ??? Por favor

Answer 1

B)

$2x = 14 \\ x = \frac{14}{2} \\ x = 7$

C)

$4x = - 12 \\ x = \frac{ - 12}{4} \\ x = - 3$

D)

$7x = - 21 \\ x = \frac{ - 21}{7} \\ x = - 3$

E)

$13x = 13 \\ x = \frac{13}{13} \\ x = 1$

F)

$9x = - 9 \\ x = \frac{ - 9}{9} \\ x = - 1$

G)

$25x = 0 \\ x = \frac{0}{25}$

H)

$35x = - 105 \\ x = \frac{ - 105}{35} \\ x = - 3$

I)

$4x = 1 \\ x = \frac{1}{4}$

K)

$84 = 6x \\ - 6x = - 84( \times - 1) \\ 6x = 84 \\ x = \frac{84}{6} = 14$

M)

$x \div 4 = - 3 \\ x = - 3 \times 4 \\ x = - 12$

O)

$2x \div 3 = - 10 \\ 2x = - 10 \times 3 \\ 2x = - 30 \\ x = \frac{ - 30}{2} \\ x = - 15$

P)

$3x \div 4 = 30 \\ 3x = 30 \times 4 \\ 3x = 120 \\ x = \frac{120}{3} \\ x = 40$

Q)

$2x \div 5 = - 18 \\ 2x = - 18 \times 5 \\ 2x = - 90 \\ x = \frac{ - 90}{2} \\ x = - 45$

Espero ter ajudado!!!