3 years ago

How do you solve -7x+(-21)=41

Mathematics

1 answer:

alex41 [277]3 years ago

7 0

Answer:

x = -62/7

Step-by-step explanation:

-7x+(-21)=41

-7x -21 =41

Add 21 to each side

-7x-21+21 = 41+21

-7x = 62

Divide by -7

-7x/-7 = 62/-7

x =- 62/7

You might be interested in

Suppose a car has a rating of 4.8 gallons per 100 miles. What is the miles-per-gallon rating of this car?

bezimeni [28]

Answer:

The miles-per-gallon rating of this car is 20.83.

Step-by-step explanation:

This question can be solved by a rule of three.

What is the miles-per-gallon rating of this car?

How many miles for 1 gallon?

4.8 gallons are used for 100 miles. So

4.8 gallons - 100 miles

1 gallon - x miles

$4.8x = 100$

$x = \frac{100}{4.8}$

$x = 20.83$

The miles-per-gallon rating of this car is 20.83.

4 0

3 years ago

X is less than or equal to 7 and greater than 3

bezimeni [28]

X≤7
x>3

As a result, the answer will be 3 less than x and less than or equal 7. Hope it help!

3 0

3 years ago

Solve the question below, please

zhuklara [117]

Answer:

Step-by-step explanation:

(x-3)/(x+4) = x/(x+10)

(x-3)(x+10) = x(x+4)

x²+7x-30 = x²+4x

3x = 30

x = 10

3 0

3 years ago

2 Points

larisa [96]

Answer:

Step-by-step explanation:

A true true

3 0

3 years ago

Read 2 more answers

Mrs. Rios put a wallpaper around the room shown below. she used 72 feet of the wallpaper border. what is the unknown length? Sho

Ne4ueva [31]

28 does this help .I got this answer by dividing 72 by 4 to get 28

4 0

3 years ago

Read 2 more answers