Question

(2x - 5). 4 = 20

3(x + 2) = 36

(12x - 8): 2 = 14

7(x - 1) = 3x + 9

2(x + 3) + 5(x + 1) = 4(x + 4) + 1

con suma plis​

Answer 1

Explicación paso a paso:

$(2x - 5) \times 4 = 20 \\ 8 x- 20 = 20 \\ 8x = 20 + 20 \\ 8x = 40 \\ x = 5$

$3(x + 2 )= 36 \\ 3x + 6 = 36 \\ 3x = 36 - 6 \\ 3x = 30 \\ x = 10$

$(12x - 8) \div 2 = 14 \\ \frac{12x - 8}{2} = 14 \\ 12x - 8 = 28 \\ 12x = 28 + 8 \\ 12x = 36 \\ x = 3$

$7(x - 1) = 3x + 9 \\ 7x -7 = 3x + 9 \\ 7x - 3x = 9 + 4 \\ 4x = 16 \\ x = 4$

$2(x + 3) + 5(x + 1) = 4(x + 4) + 1 \\ 2x + 6 + 5x + 5 = 4x + 16 + 1 \\ 7x + 11 = 4x + 17 \\ 7x - 4x = 17 - 11 \\ 3x = 6 \\ x = 2$

Answer 2

Respuesta:

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