Respuesta:
D) x = 6
E) x = 2
F) x = 4
Explicación paso a paso:
D) 4 (x - 1) + 3 (x + 5) = 2x + 41
4x - 4 + 3x + 15 = 2x + 41
4x + 3x - 2x = 41 + 4 - 15
5x = 30
x = 30/5 = 6
E) 12 + 3 (x + 2) = 42 - 3 (x + 4)
12 + 3x + 6 = 42 - 3x - 12
3x + 3x = 42 - 12 - 12 - 6
6x = 12
x = 12/6 = 2
F) 4 (x + 2) = 2x + 16
4x + 8 = 2x + 16
4x - 2x = 16 - 8
2x = 8
x = 8/2 = 4
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Verified answer
Respuesta:
D) x = 6
E) x = 2
F) x = 4
Explicación paso a paso:
D) 4 (x - 1) + 3 (x + 5) = 2x + 41
4x - 4 + 3x + 15 = 2x + 41
4x + 3x - 2x = 41 + 4 - 15
5x = 30
x = 30/5 = 6
E) 12 + 3 (x + 2) = 42 - 3 (x + 4)
12 + 3x + 6 = 42 - 3x - 12
3x + 3x = 42 - 12 - 12 - 6
6x = 12
x = 12/6 = 2
F) 4 (x + 2) = 2x + 16
4x + 8 = 2x + 16
4x - 2x = 16 - 8
2x = 8
x = 8/2 = 4