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Explicación paso a paso : 6. (3x + 4) / 4 = 7 3x + 4 = 7×4 3x + 4 = 28 3x = 24 x = 24 / 3 x = 89. (x + 3) / 2 + 11 = 20 (x + 3) / 2 = 20 - 11 (x + 3) / 2 = 9 (x + 3) = 9×2 x + 3 = 18 x = 1512. (2x + 1) / 3 - 4 = 1 (2x + 1) / 3 = 5 2x + 1 = 5×3 2x + 1 = 15 2x = 14 x = 715.

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JURLEYDIAZ
6

Explicación paso a paso : 6.

(3x + 4) / 4 = 7 3x + 4 = 7×4 3x + 4 = 28 3x = 24 x = 24 / 3 x = 89.

(x + 3) / 2 + 11 = 20 (x + 3) / 2 = 20 - 11 (x + 3) / 2 = 9 (x + 3) = 9×2 x + 3 = 18 x = 1512.

(2x + 1) / 3 - 4 = 1 (2x + 1) / 3 = 5 2x + 1 = 5×3 2x + 1 = 15 2x = 14 x = 715.

(9x + 7) / 5 = 1 + 2 ^ 2 (9x + 7) / 5 = 1 + 4 ( 9x + 7) / 5 = 5 9x + 7 = 5×5 9x + 7 = 25 9x = 18 x = 2.

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Respuesta 2

Rosatoledo48
1

Respuesta : 9 - 12 12 - 6Explicación paso a paso : 9 - × + 3÷2 + 11 = 20 ×÷2 = 20 - 11 - 3 × = 6 ×2 × = 1212 - 2x + 1÷3 - 4 = 1 2×÷3 = 1 + 4 - 1 2x = 4×3 x = 12÷2 × = 6.