1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fudgin [204]
3 years ago
10

5a+8+(-2a)=-7 I need help with this question especially because of the parenthesis

Mathematics
2 answers:
8_murik_8 [283]3 years ago
6 0

Answer:

a = -5

Step-by-step explanation:

Simplify both sides:

5a + 8 + (-2a) = -7

(5a + -2a) + 8 = -7

3a + 8 = -7

Start solving for a by subtracting 8 from both sides

3a+8-8 = -7 - 8

3a = -15

Next, divide both sides by 3

3a/3 = 1

-15/3 = -5

a = -5

Mashcka [7]3 years ago
3 0

Answer:

5a+8+(-2a)=-7

5a+8-2a=-7

5a-2a=-7-8

3a=-15

3a/3=-15/3

a=-5

You might be interested in
Problem 1: 2x &gt; 4x - 6<br> problem 2: -3r &lt; 10 - r<br> problem 3: 5c - 4 &gt; 8c + 2
Trava [24]
<span>Problem 1: 2x > 4x - 6
                  2x < 6  
                    x < 3

problem 2: -3r < 10 - r
                   -2r < 10
                      r > -5

problem 3: 5c - 4 > 8c + 2
                       3c < -6
                         c < -2</span>
8 0
3 years ago
To the nearest cent, evaluate $73.50 * (7.5% + 1.25%).
Gelneren [198K]
The answer is $6.43. Hope this helps

7 0
3 years ago
Read 2 more answers
What is 3yards x 3feet x 1foot=
Kazeer [188]

Answer:

<h2>27ft³</h2>

Step-by-step explanation:

1 yard = 3  feet

therefore 3 yards = 3(3 feet) = 9 feet

3yd × 3ft × 1ft = 9ft × 3ft × 1ft = 27ft³

5 0
3 years ago
Fraction or mixed number 0.6
Tom [10]
Think it is a fraction
7 0
3 years ago
Read 2 more answers
Calcite the area of sphere radius 3 give your answer in 1 decimal place <br>​
Lisa [10]

Answer: I assume you mean surface area of a sphere.

The formula is 4πr²

If radius=3, then:

4 times \frac{22}{7} times 3²

4 times \frac{22}{7} times 9

= 113.142857

Rounded to 1 decimal place = 113.1

<u>NOTE: In place of π you can also use 3.14.</u>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following fractions is the largest? A. 10/13 B. 11/14 C. 14/15 D. 17/18
    12·2 answers
  • I need help in all of the questions 7-16
    11·1 answer
  • David Copperfield did this number trick:
    10·1 answer
  • A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per
    15·2 answers
  • Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below?
    10·1 answer
  • Evaluate 3x^2 - x for x = -2​
    8·1 answer
  • Kenise will begin college as a freshman next fall and has received a 10-year $5,500 Federal Direct Unsubsidized Loan with an int
    10·1 answer
  • OT bisects ∠DOG. Find the measure of ∠DOG if ∠DOT = 4x + 4 and ∠TOG = 5x – 3
    14·1 answer
  • 1. temperature in region 12 rises up to 36 ​
    11·1 answer
  • Given: ∠T ≅ ∠V; ST || UV
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!