Question

a) 3х + 2х + x
c) 5а — 7а + За
e) —2х + 9x - x

Answer 1

Respuesta

• 6x
• a
• 6x

Explicación paso a paso:

$3x+2x+x\\ \\ =3x+2x+x\\ \\ =(3x+2x+x)\\ \\ =6x$

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$5a-7a+3a\\ \\ =5a+-7a+3a\\ \\ =5a+-7a+3a\\ \\ =(5a+-7a+3a)\\ \\ =a$

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$-2x+9x-x\\ \\ =-2x+9x+-x\\ \\ =-2x+9x+-x\\ \\ =(-2x+9x+-x)\\ \\ =6x$