Question

50 + 3x - 4 = 2 × (3x - 4

2x/5 + 81 = x

x/4 + 24 = 5x/8
Pfvr me ajudem

Answer 1

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50 + 3x - 4 = 2(3x - 4)

46 + 3x = 6x - 8

6x - 3x = 46 + 8

3x = 54

x = 54/3

x = 18

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2x/5 + 81 = x

2x/5 + 81 - x = 0

2x/5 - x = -81

2x - 5x = -405

-3x = -405

3x = 405

x = 405/3

x = 135

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x/4 + 24 = 5x/8

2x + 192 = 5x

2x + 192 - 5x = 0

-3x + 192 = 0

-3x = -192

3x = 192

x = 192/3

x = 64

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Att: MarcosPCV