niajack531 niajack531

10-09-2017
Mathematics

contestada

Are the equations sometimes, always, or never true?
a. 15 + 2x − 4 = 9x + 11 − 7x
b. 2x + 3(4x − 1) = 2(5x + 3) + 4x

Respuesta :

texaschic101 texaschic101

10-09-2017

15 + 2x - 4 = 9x + 11 - 7x
2x + 11 = 2x + 11
always true

2x + 3(4x - 1) = 2(5x + 3) + 4x
2x + 12x - 3 = 10x + 6 + 4x
14x - 3 = 14x + 6
never true

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