Question

Sacar la incógnita de los siguientes valores​

Answer 1

1)

$2(x + 5) = 16 \\ 2x + 10 = 16 \\ 2x = 16 - 10 \\ 2x = 6 \\ x = 6 \div 2 \\ x = 3$

2)

$3(t + 1) = 18 \\ 3t + 3 = 18 \\ 3t = 18 - 3 \\ 3t = 15 \\ t = 15 \div 3 \\ t = 5$

3)

$2(3y - 5) = 14 \\ 6y - 10 = 14 \\ 6y = 14 + 10 \\ 6y = 24 \\ y = 24 \div 6 \\ y = 4$

4)

$4(3t - 2) = 88 \\ 12t - 8 = 88 \\ 12t = 88 + 8 \\ 12t = 96 \\ t = 96 \div 12 \\ t = 8$

5)

$2(3x + 1) = 11 \\ 6x + 2 = 11 \\ 6x = 11 - 2 \\ 6x = 9 \\ x = 9 \div 6 \\ x = \frac{9}{6} \\ x = \frac{3}{2}$

6)

$6(3k + 5) = 39 \\ 18k + 30 = 39 \\ 18k = 39 - 30 \\ 18k = 9 \\ k = 9 \div 18 \\ k = \frac{9}{18} \\ k = \frac{1}{2}$

7)

$9(3x - 5) = 9 \\ 27x - 45 = 9 \\ 27x = 9 + 45 \\ 27x = 54 \\ x = 54 \div 27 \\ x = 2$

8)

$3(t + 7) = 15 \\ 3t + 21 = 15 \\ 3t = 15 - 21 \\ 3t = - 6 \\ t = - 6 \div 3 \\ t = - 2$