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IgorC [24]
3 years ago
5

2x + 5 = 8x - 13 Solve the equation. Do not use decimals in your awnser

Mathematics
2 answers:
Genrish500 [490]3 years ago
8 0

Answer:

x = 6

Step-by-step explanation:

2x + 5 = 8x - 13 place like terms in the same side of the equation

5 + 13 = 8x - 2x add like terms

18 = 6x

6 = x

ycow [4]3 years ago
4 0
X = 3 ! you would just use inverse operations and single out x

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4x/5 - 3x/7 = 4x/7 + 5x/7 can anyone please help with explanation...​
kirill115 [55]

Answer: x=0

Step-by-step explanation:

Multiply both sides of the equation by 35, the least common multiple of 5,7.

7×4x−5×3x=5×4x+5×5x

Multiply 7 and 4 to get 28.

28x−5×3x=5×4x+5×5x

Multiply −5 and 3 to get −15.

28x−15x=5×4x+5×5x

Combine 28x and −15x to get 13x.

13x=20x+25x

Combine 20x and 25x to get 45x.

13x=45x

Subtract 45x from both sides

13x−45x=0

Combine 13x and −45x to get −32x

−32x=0

Product of two numbers is equal to 0 if at least one of them is 0. Since −32 is not equal to 0, x must be equal to 0.

X=0

7 0
2 years ago
Quiz due today! Please help me. No links! 10 points
REY [17]

Answer: you have to use d=rt to figure it out. that is distance equals to rate times time

Step-by-step explanation:

hope that helps

5 0
2 years ago
Read 2 more answers
A bakery sells 4 dozen cupcakes every 3 hours. If the bakery is open 8 hours each day, how many days does it take to sell 640 cu
zmey [24]

5 days does it take to sell 640 cupcakes.

Given:

A bakery sells 4 dozen cupcakes every 3 hours.

If the bakery is open 8 hours each day.

4 dozen cupcakes = 4*12 cupcakes

= 48 cupcakes

48 cupcakes = 3 hours

divide by 3 on both sides

3hours/3 = 48/3 cupcakes

1 hour = 16 cupcakes

Number of cupcakes for 8 hours = 8 * 16 = 128 cupcakes.

128 cupcakes sells in one day.

To sell 640 cupcakes = 640/128

= 5 days.

Therefore 5 days does it take to sell 640 cupcakes.

Learn more about the bakery and cupcakes here:

brainly.com/question/14466478

#SPJ1

8 0
10 months ago
A parallelogram has a base of 10 centimeters and a height of 4 centimeters. What is the area of the parallelogram?​
a_sh-v [17]
The area of the parallelogram is 40 centimeters
5 0
3 years ago
Read 2 more answers
Every floor of a 20 storey building is 5m in high. If a lift moves 2m every second, how long will it take to move from 3rd floor
kramer

Answer:

30 seconds

Step-by-step explanation:

→ Work out how many floors it's going to travel

15 - 3 = 12 floors

→ Work out how many meters 12 floors is

12 × 5 = 60 meters

→ Work out how long that will take

60 ÷ 2 = 30 seconds

3 0
3 years ago
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