Mathematics: Jakob simplified the expression as shown. (6.7x-.4x--2) 6.7x-3-3.4x-1-2x-2 (6.7x-3.4x-2x)+(-3-1-2) 1.3x-6 what was jakob s error in subtracting the expressions? o he used the commutative property incorrectly. he used the distributive property incorrectly. o he used the associative property incorrectly. he simplified the x coefficients incorrectly.

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Jakob simplified the expression as shown. (6.7x-.4x--2)

ryrytkg5107

11.01.2022

he used the distributive property incorrectly

Step-by-step explanation:

(6.7x-3)-(3.4x-1)-(2x-2)

should equal:

6.7x-3+3.4x+1-2x+2

however jakob put:

6.7x-3-3.4x-1-2x-2

this shows that he distributed the negative sign incorrectly

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