Question

Determinar el valor de x
a)2x=6
b)2x−3=6+x
c)−2−x=x−8
d)2x+1=5x−8
e)2(1+x)=10
f)3−4x−1=−x+2+2x
g)3+x=√16−24
h)√9+x∶3=33
i)−5x−22=−√36
j)3+x=√25−16
k)−25+3=−36−√9+2.(−25)

ayuda xf!

Answer 1

Respuesta:

la respuesta de la primera la A

es : 16.

Answer 2

Respuesta:

$a)2x = 6 \\ x = \frac{6}{2} \\ x = 3$

$b)2x - 3 = 6 + x \\ 2x - x = 6 + 3 \\ x = 9$

$c) - 2 - x = x - 8 \\ - 2 + 8 = x + x \\ 6 = 2x \\ 3 = x$

$d)2x + 1 = 5x - 8 \\ 1 + 8 = 5x - 2x \\ 9 = 3x \\ 3 = x$

$e)2(1 + x) = 10 \\ 2 + 2x = 10 \\ 2x = 10 - 2 \\ 2x = 8 \\ x = 4$

$f)3 - 4x - 1 = - x + 2 + 2x \\ 2 - 4x = x + 2 \\ 2 - 2 = x + 4x \\ 0 =5 x \\ 0 = x$

$g)3 + x = \sqrt{16} - 24 \\ 3 + x = 4 - 24 \\ 3 + x = - 20 \\ x = - 20 - 3 \\ x = - 23$

$h) \sqrt{9} + x \div 3 = 33 \\ 3 + x \div 3 = 33 \\ x \div 3 = 33 - 3 \\ x \div 3 = 30 \\ x = 30 \times 3 \\ x = 90$

$i) - 5x - 22 = - \sqrt{36} \\ - 5x - 22 = - 6 \\ - 22 + 6 = 5x \\ - 16 = 5x \\ - \frac{16}{5} = x$

$j)3 + x = \sqrt{25} - 16 \\ 3 + x = 5 - 16 \\ 3 + x = - 11 \\ x = - 11 - 3 \\ x = - 14$