Question

determine o valor de x:​

Answer 1

Letra B:

$\sf x + x = 12 \\ \\ \\ \sf 2x = 12 \\ \\ \\ \sf x = \frac{12}{2} \\ \\ \\ \sf {\color{red}x = 6}$

Letra C:

$\sf 3x = 45 \\ \\ \\ \sf x = \frac{45}{3} \\ \\ \\ \sf {\color{red}x = 15}$

Letra F:

$\sf x + x + x = 12 \\ \\ \\ \sf 2x + x = 12 \\ \\ \\ \sf 3x = 12 \\ \\ \\ \sf x = \frac{12}{3} \\ \\ \\ \sf {\color{red}x= 4}$

Att: Nerd1990

Answer 2

Resposta:

B) X = 6

D) X = 15

F) X = 4

Explicação passo-a-passo:

B) X + X = 12

2X = 12

X = 12/2

X = 6

D) 3X = 45

X = 45/3

X = 15

F) X + X + X = 12

3X = 12

X = 12/3

X = 4