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3 years ago

6x+12 = 4x -18 please answer !!!!

Mathematics

2 answers:

ohaa [14]3 years ago

6 0

6x+12 = 4x-18
6x-4x =-18-12
2x = -30
x= -15

Aleksandr-060686 [28]3 years ago

4 0

X= -15 im pretty sure

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In Image:

iris [78.8K]

Answer:

The answer to your question is x ≠ -10 x ≠ 2 x ≠ -2

Solution $\frac{(x- 8)(x + 2)}{(x + 8)(x - 2)}$

Step-by-step explanation:

Process

1.- Factor all the polynomials

$\frac{x^{2} -3x - 40}{x^{2} + 8x - 20} / \frac{x^{2}+ 13x + 40}{x^{2}+ 12x + 20}$ = $\frac{(x-8)(x + 5)}{(x + 10)(x- 2)} / \frac{(x+ 8)(x + 5)}{(x + 10)(x + 2)}$

2.- Invert the second term

= $\frac{(x- 8)(x + 5)}{(x +10)(x - 2)} \frac{(x+ 10)(x + 2)}{(x + 8)(x +5)}$

3.- Simplify

= $\frac{(x- 8)(x + 2)}{(x + 8)(x - 2)}$

4.- x must be different to

x ≠ -10 x ≠ 2 x ≠ -2

This values are from the factor expressions and then equal to zero.

8 0

2 years ago

Tina is joining 3 sections of a quilt. Each section has 3 rows of 15 square pieces of fabric. How many squares will be in the co

strojnjashka [21]

Answer:

There will be 135 squares in total. Changing the order of the factors wont change the result.

Step-by-step explanation:

(i am assuming that sqaures = sqaure pieces)

Each section has 3 rows of 15 square pieces, therefore each section has 3*15 = 45 sqaure pieces. Thus, the complete guilt will have 45*3 = 135 square pieces. Since all we do were multiplications, changing the order of the factors wont change the value of the product.

7 0

3 years ago

The equation was y = 18x + 300.

Lilit [14]

Answer:

slope is 18 and it represents the change in x or in your case, whatever x represents such as miles per hour or bananas eaten per minute

Step-by-step explanation:

5 0

2 years ago

Use the indicated properties of realnumbers to complete the blanks of the following statements.

jek_recluse [69]

Answer:

13. $50+43=43+50$

14. $5+(7+6)=(5+7)+6$

15. $-15+0=0-15=-15$

16. $\frac{3}{4}*\frac{4}{3}=1$

17. $25*4=4*25$

Step-by-step explanation:

Let "a", "b", and "c" real numbers.

- Commutative Property of Addition states that:

$a+b=b+a$

- Associative Property of Addition states that:

$(a+b)+c=a+(b+c)$

- Additive Identity Property states that:

$a+0=0+a=a$

- Commutative Property of Multiplication states that:

$a*b=b*a$

- Multiplicative Inverse Property states that:

$a*\frac{1}{a}=1$ ( $a\neq 0$ )

Knowing these properties, we can solve the exercise:

13. By the Commutative Property of Addition:

$50+43=43+50$

14. By the Associative Property of Addition:

$5+(7+6)=(5+7)+6$

15. By the Additive Identity Property:

$-15+0=0-15=-15$

16. By the Multiplicative Inverse Property:

$\frac{3}{4}*\frac{4}{3}=1$

17. By the Commutative Property of Multiplication:

$25*4=4*25$

4 0

2 years ago

Help!!!

Ad libitum [116K]

Answer: 1/30 the rise over run is the slope wich means the y value over the x value and since you have 2 points you have to subtract the y values and put it over the subtracted x values

Step-by-step explanation:

3 0

2 years ago