Question

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Answer 1

a) x+x+x = 87

3x = 87

x = 87/3

x = 29

b) x-2x+4x = 81

3x = 81

x = 81/3

x = 27

c) 47+38+x = 110

x = 110-47-38

x = 25

d) -47x = 611

x = -611/47

x = -13

e) -10x = -10

x = 10/10

x = 1

f) -30x = 9000

x = -9000/30

x = -300

❤️ Espero ter ajudado ❤️

25/05

Answer 2

Resposta:

$a)x + x + x = 87 \\ 3x = 87 \\ x = \frac{87}{3} \\ x = 29$

$b)x - 2x + 4x = 81 \\ 3x = 81 \\ x = \frac{81}{3} \\ x = 27$

$c)47 + 38 + x = 110 \\ 85 + x = 110 \\ x = 110 - 85 \\ x = 25$

$d) - 47x = 611 \\ x = \frac{611}{ - 47} \\ x = - 13$

$e) - 10x = - 10 \\ x = \frac{ - 10}{ - 10} \\ x = 1$

$f) - 30x = 9000 \\ x = \frac{9000}{ - 30} \\ x = - 300$