Question

como se evalua esto??

Answer 1

9x/4 + 7 = 1/2 - x
(9x + 28)/4 = (1 - 2x)/2
18x + 56 = 4 - 8x
26x = - 52
x = - 2
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3x/4 - 4/3 = x/2 - 1/3
(9x - 16)/12 = (3x - 2)/6
54x - 96 = 36x - 24
18x = 72
x = 4
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(x + 1)/5 - (x - 6)/3 = 37/15
(3x + 3 - 5x + 30)/15 = 37/15
(33 - 2x)/15 = 37/15
495 - 30x = 555
- 30x = 60
x = - 2

2x² + 9x - 40 = 2(- 2)² + 9(- 2) - 40 = 8 - 18 - 40 = - 50
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nx - b = a
nx = a + b
x = (a + b)/n

Answer 2

Respuesta:

usted es profe los pres savem

Explicación paso a paso: