Question

Resolva as equações pt2

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Responda certo para q eu possa entender[fazer a conta completa]se puder faça o mmc,obgd

3- a)5×+6 = -10

b) 3×+4 =5× -12

c) 4×/2 -5/3 = 6×/4 -8/3

d) 4×-2/3 = × +5/6


e) 2×+3/ 3 - ×+5/ 6 + 5/2 = 3×+4/3

Answer 1

5x + 6 = -10

5x = -10 - 6

5x = -16

x = -16/5

x = 3.2

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3x + 4 = 5x - 12

3x - 5x = - 12 - 4

-2x = -16 .(-1)

2x = 16

x = 16/2

x = 8

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MM de 2 - 3 - 4

2 - 3 - 4 / 2

1 - 3 - 2 / 2

1 - 3 -1 / 3

1 - 1 - 1 = 12

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4x/2, 12 ÷ 2 = 6 --- 6 × 4x = 24x

5/3, 12 ÷ 3 = 4 ---- 4 × (-5) = 20

6x/4, 12 ÷ 4 = 3 ---- 3 × 6x = 18x

8/3, 12 ÷ 3 = 4 --- 4 × (-8) = 32

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24x + 20 = 18x + 32

24x - 18x = 32 - 20

6x = 12

x = 12/6

x = 2

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