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CaHeK987 [17]
3 years ago
7

I am totally confused trying to help my son, on this problem

Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0

Answer: x=4

Step-by-step explanation: You have to distribute the negative signs

x - (4x-7)= 5x-(x+21)

x - 4x + 7 = 5x - x - 21

- 3x + 7 = 4x - 21

28 = 7x

X = 4

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-3(x + 5) = 6 - 3(2x + 4) solve for x and show work
salantis [7]
Your answer is x = 3.

-3(x + 5) = 6 - 3(2x + 4)
-3x - 15 = 6 -6x - 12
-3x - 15 = -6 - 6x
-3x + 6x = -6 + 15
3x = -6 + 15
3x = 9
x = 3
3 0
3 years ago
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When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?
alisha [4.7K]
0.5(20x - 50y + 36) - 0.25(-100x + 40y - 12)
10x - 25y + 18 + 25x - 10y + 3
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7 0
4 years ago
Fitness Your goal is to take at least 10,000 steps per day. According to your pedometer, you have walked 527 4 steps. Write and
Archy [21]

The inequality is x + 5274 ≥ 10,000.

The total number of steps I have to take to reach my goal is 4726.

<h3>How many more steps do I have to take?</h3>

Here are inequality signs and what they mean:

  • > means greater than
  • < means less than
  • ≥ means greater than or equal to
  • ≤ less than or equal to

Number of steps I have to take + number of steps I have taken ≥Total steps

X + 5274 + x ≥ 10,000

x ≥ 10,000 - 5274

x ≥ 4726

To learn more about inequality, please check: brainly.com/question/5031619

#SPJ1

5 0
2 years ago
Choose the correct simplification of the expression (a^2/ b^3)^4.
anastassius [24]
(a^2)^4 = a^8, and (b^3)^4 = b^12.  Thus, the quotient is

 a^8
--------
 b^12
4 0
4 years ago
Which is greater? 2.17 or 2.2
goldfiish [28.3K]

Answer:

2.2

Step-by-step explanation:

8 0
4 years ago
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