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soldi70 [24.7K]
3 years ago
5

yra solves the equation as shown. - 3(x+2) = 9 1. - 3x - 6 = 9 2. - 3x = 15 3. x = - 5 The property Tyra used in line 1 was the:

Mathematics
2 answers:
Molodets [167]3 years ago
5 0

Answer:

Distributive property says that:

a\cdot(b+c) = a\cdot b + a\cdot c

Addition property of equality:

if x = y then x+z = y+z

Division property of equality:

if x = y then \frac{x}{z}=\frac{y}{z}

As per the statement:

Given the equation: -3(x+2)=9

Tyra solve this equation as shown below:

1.

-3x -6 = 9               [Distributive property]

2.

-3x = 15                 [Addition property of equality]

3.

x = -5                    {Division property of equality]

Therefore, the  property Tyra used in line 1 was : Distributive Property.

Ipatiy [6.2K]3 years ago
3 0

Answer: In line 1 distributive property is used


Step-by-step explanation:

Given equation :

-3(x+2)=9

Tyra solves it as :

1. -3x-6=9

2. -3x=15

3. x=-5

In 1. Distributive property is used i.e.

a.(b+c)=a.b+a.c

2. Addition property is used

i.e.If a=b then a+c=b+c

3. Division property is used

i.e. If a=b then

\frac{a}{c}=\frac{b}{c}

Therefore the property used in line 1 is :

Distributive property



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