Question

¡Por favor! Gracias ​

Answer 1

a.

2 * 4x + 2 * x = 8x + 2x = 10x

b.

2 * 5x + 2 * 3x + 2 * 2x = 10x + 6x + 4x = 20x

c.

2 * (x + x + 2x) + 3x + x = 2 * 4x + 3x + x = 8x + 3x + x = 12x

d.

2 * (x + x + x + x + x) + 2 * x = 2 * 5x + 2x = 10x + 2x = 12x

Answer 2

a.

2 * 4x + 2 * x = 8x + 2x = 10x

b.

2 * 5x + 2 * 3x + 2 * 2x = 10x + 6x + 4x = 20x

c.

2 * (x + x + 2x) + 3x + x = 2 * 4x + 3x + x = 8x + 3x + x = 12x

d.

2 * (x + x + x + x + x) + 2 * x = 2 * 5x + 2x = 10x + 2x = 12x

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