Question

NECESITO AYUDAAAAaaaaaaaaaaaa

Answer 1

1 a)

$10 \times x + 5 = {5}^{2} \\ 10x + 5 = 25 \\ 10x = 25 - 5 \\ 10x = 20 \\ x = \frac{20}{10} \\ x = 2$

b)

$5 \times x - 54 \div 2 = 32 \div 4 \\ 5x - 27 = 8 \\ 5x = 8 + 27 \\ 5x = 35 \\ x = \frac{35}{5} \\ x = 7$

c)

$6x + 3x + 21 = 75 \\ 6x + 3x = 75 - 21 \\ 9x = 54 \\ x = \frac{54}{9} \\ x = 6$

d)

$7x - 5 = 3x + 27 \\ 7x - 3x = 27 + 5 \\ 4x = 32 \\ x = \frac{32}{4} \\ x = 8$

e)

$3 \times {x}^{2} + 2 = 77 \\ 3 {x}^{2} + 2 = 77 \\ 3 {x}^{2} = 77 - 2 \\ 3 {x}^{2} = 75 \\ {x}^{2} = \frac{75}{3} \\ {x}^{2} = 25 \\ x = \frac{25}{2} \\ x = 5$

f)

${x}^{3} + 75 = 200 \\ {x}^{3} = 200 - 75 \\ {x}^{3} = 125 \\ x = \frac{125}{3} \\ x = 5$

la última nosé

2 a)

${x}^{2} - 2 = {6}^{2}$

b)

$5x + {x}^{2} = 56$

c)

${x}^{2} = {4}^{3}$

lo demás nosé