Question

Si me ayudan se los agradecería muchísimo

Answer 1

Respuesta:

a)

8- x =

$8 - x = \sqrt{25 - 16}$

8 - x = 3

× = (+) 3 + 8

x =11

b)

5× - 2(2) =6

5x-4= 6

5x= 4+6

5x = 10

x= 10÷5

×=5

c)

3 + x ÷2= 36

3 + x = 2 × 36

3 + x = 72

x= 72 ÷3

x= 24

d)

4x + 1 + x = 3(a la tercuia) -

5x + 1 =

Answer 2

a

$8-x=\sqrt{25-16}\\8-x=\sqrt{9}\\8-x=\sqrt{3^2}\\8-x=3\\8-x-8=3-8\\-x=-5\\\frac{-x}{-1}=\frac{-5}{-1}\\x=5$

b

$5x^2-2^2=\sqrt{36}\\5x^2-2^2+2^2=\sqrt{36}+2^2\\5x^2=10\\\frac{5x^2}{5}=\frac{10}{5}\\x^2=2\\x=\sqrt{2},\:x=-\sqrt{2}$

c

$\frac{\sqrt{9}+x}{2}=36\\\frac{2\left(\sqrt{9}+x\right)}{2}=36\cdot \:2\\3+x=72\\3+x-3=72-3\\x=69$

d

$4x+4^0+x=3^3-\sqrt[3]{1}\\4x+1+x=3^3-\sqrt[3]{1}\\4x+x+1=3^3-\sqrt[3]{1}\\5x+1=3^3-\sqrt[3]{1}\\5x+1=3^3-1\\5x+1=27-1\\5x+1=26\\5x+1-1=26-1\\5x=25\\x=5$