Question

resuelve la siguiente tabla


l Ecuación l valor de x l
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l 13 – (4x - 6) = x - 3 l l
l x – (2x + 1) = 8 – (3x + 3) l l
l 7(x + 1) - 4(x+3) = x - 9 l l
l 2(x + 4) =14 l l
l x - (2x + 1) = 8 – (3x + 3) l l
l 4(2x -1) + 15 = 6 - 2(x - 5) + 5x l l
l 5(3x - 2) = -7(5x +4) l l
l -(3x +5) = (x – 7) - 2 l l
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Answer 1

Explicación paso a paso:

1. 13 - 4x + 6 = x - 3

4x - x = -3 - 13 - 6

3x = -22

x = -22 ÷ 3

2. x - 2x - 1 = 8 - 3x - 3

x - 2x + 3x = 8 - 3 + 1

4x - 2x = 9 - 3

2x = 6

x = 6 ÷ 2

3. 7x + 7 - 4x -21 = x - 9

7x - 4x - x = -9 - 7 + 21

2x = 21 - 16

x = 5 ÷ 2

4. 2x + 8 =14

2x = 14 - 8

x = 6 ÷ 2

5. igual que la 2.

6. 8x - 4 + 15 = 6 - 2x +10 + 5x

8x + 2x - 5x = 6 + 10 + 4 - 15

5x = 5

x = 5 ÷ 5