Question

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Answer 1

Respuesta:

a) 10

b) 16,5

C)6

d)

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Answer 2

Explicación paso a paso:

a)

$5x + 10 = 60 \\ 5x = 60 - 10 \\ 5x = 50 \\ x = \frac{50}{5} \\ \boxed {x = 10}$

b)

$2x - 15 = 18 \\ 2x = 18 + 15 \\ 2x = 33 \\ x = \frac{33}{2} \\ \boxed {x = 16.5}$

c)

$8x = 64 \\ x = \frac{64}{8} \\ \boxed {x = 8}$

d)

$x + 4x + 3x = 16 \\ 8x = 16 \\ x = \frac{16}{8} \\\boxed { x = 2}$

e)

$\frac{x}{2} = 200 \\ x = 2(200) \\ \boxed {x = 400}$

f)

$16x - 8 = 72 \\ 16 x = 72 + 8 \\ 16x = 80 \\ x = \frac{80}{16} \\ \boxed {x = 5}$

g)

$x + 3x - 2x = 8 \\ 2x = 8 \\ x = \frac{8}{2} \\\boxed { x = 4}$

h)

$2x + 12 = 128 \\ 2x = 128 - 12 \\ 2x = 116 \\ x = \frac{116}{2} \\ \boxed {x = 58}$