All categories

4 years ago

(9x + 5 ) - (6x +-8)

Mathematics

1 answer:

satela [25.4K]4 years ago

3 0

Answer: x = -4.333333333

Step-by-step explanation:

Simplifying

(9x + 5) + -1(6x + -8) = 0

Reorder the terms:

(5 + 9x) + -1(6x + -8) = 0

Remove parenthesis around (5 + 9x)

5 + 9x + -1(6x + -8) = 0

Reorder the terms:

5 + 9x + -1(-8 + 6x) = 0

5 + 9x + (-8 * -1 + 6x * -1) = 0

5 + 9x + (8 + -6x) = 0

Reorder the terms:

5 + 8 + 9x + -6x = 0

Combine like terms: 5 + 8 = 13

13 + 9x + -6x = 0

Combine like terms: 9x + -6x = 3x

13 + 3x = 0

Solving

13 + 3x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-13' to each side of the equation.

13 + -13 + 3x = 0 + -13

Combine like terms: 13 + -13 = 0

0 + 3x = 0 + -13

3x = 0 + -13

Combine like terms: 0 + -13 = -13

3x = -13

Divide each side by '3'.

x = -4.333333333

Simplifying

x = -4.333333333

You might be interested in

Can someone help me solve this please?

slega [8]

Answer:

3 becouse you hade three right

Step-by-step explanation:

6 0

3 years ago

Find a4 for the arithmetic series with S4=-36 and a1=9

erastova [34]

ANSWER

The 4th term is -27

EXPLANATION

The sum of the first n-terms of an arithmetic sequence is

$S_n= \frac{n}{2} (2a_1+d(n-1))$

It was given that,

$S_4 = - 36$

$a_1 = 9$

$- 36= \frac{ 4}{2} (2 \times 9+d(4-1))$

$-36=2(18+3d)$

$-18=18+3d$

$-18 - 18 = 3d$

$3d = - 36$

$d = - 12$

The n-term is given by:

$a_n=a_1+ (n-1)d$

We substitute n=4 to get,

$a_4=9+ (4-1) \times -12$

$a_4=9+ 3\times -12$

$a_4=9 - 36$

$a_4= - 27$

5 0

3 years ago

1 kilogram is roughly 2.2 pounds.

Paul [167]

Answer:

11 pounds

Step-by-step explanation:

1 k = 2.2 p

5 k = ?

2.2 x 5 = 11

5 k = 11 p

4 0

3 years ago

Read 2 more answers

What is the coefficient of the fourth term in the expansion of (x - y)^6?

Zarrin [17]

<span>If you're aware of the binomial theorem, you have that:
</span> $(x-y)^6=\sum_{k=0}^{6}\binom{6}{6-k}x^k(-1)^{6-k}y^{6-k}$
$(x-y)^6=\sum_{k=0}^{6}\binom{6}{k}x^k(-1)^{k}y^{6-k}$

The fourth term is then the case $k=3$ , from which:
$c_{3}=\binom{6}{3}x^3(-1)^3y^3= \frac{6!}{3!(6-3)!} * (-x^3y^3)=- \frac{720}{36}x^3y^3=-20x^3y^3$

3 0

4 years ago

Read 2 more answers

Identify the conic that is formed by the intersection of the plane described and the double-napped cone.

Lelu [443]

Answer:

C. Parabola

Step-by-step explanation:

A line parallel will cut only one cone (upper or lower cone, not both) making it a parabola

4 0

3 years ago

(9x + 5 ) - (6x +-8)​

(9x + 5 ) - (6x +-8)