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
notka56 [123]
3 years ago
13

If "a" is a solution to the equation 5 + 6a = 7a-3, then what is the value of 2a?

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

The value of 2a will be: 16

Step-by-step explanation:

Given the equation

5 + 6a = 7a-3

subtract 5 from both sides

5+6a-5=7a-3-5

6a=7a-8

-a=-8

Divide both sides by -1

\frac{-a}{-1}=\frac{-8}{-1}

a=8

As we know that a=8 is the solution to the equation.

Hence, the value of 2a will be:

2a = 2(8)    ∵ a=8

     = 16

Therefore, the value of 2a will be: 16

You might be interested in
What is the quotient (x^3-3x^2+3x-2) divided by (x^2-x+1)
Zielflug [23.3K]
If you do the long division you'll see that it is x - 2.
4 0
3 years ago
Solve each system using substitution:<br> 1. 4x - 5y= -15<br> y= -3x + 22
Bumek [7]
4x - 5y = -15
y = -3x + 22

Plug in your y= equation into the y variable in the other equation

  4x - 5 (y) = -15
            ^^
y = (-3x + 22) = -15

4x - 5 (-3x + 22) = -15

Distribute

4x + 15x - 110 = -15

Combine like terms and add 110 over to -15

19x = 95

Then, divide the whole equation by 19

x = 5

Then, plug in your x into your y= equation

y = -3 (5) + 22
y = -15 + 22
y = 7

<em><u>x = 5</u></em>
<em><u>y = 7</u></em>
<em><u>(5, 7)</u></em>
3 0
3 years ago
Solve 4(a-3) = 22 <br> solve 5(x -6) = 65<br><br> with explanation, please <br> giving 20 points
DaniilM [7]

Step-by-step explanation:

4(a-3)=22

a-3=4-22

a-3=18

a=18+3

a=21

5(x-6)=65

x-6=65-5

x-6=60

×=60+6

x=66

hope it will help u...............

5 0
3 years ago
Read 2 more answers
How do you simplify 15/40​
Katyanochek1 [597]

Answer:3/8

Step-by-step explanation:

The simplest form of  

15 /40  is  3 /8 .

Steps to simplifying fractions

Find the GCD (or HCF) of numerator and denominator

GCD of 15 and 40 is 5

Divide both the numerator and denominator by the GCD

15 ÷ 5

40 ÷ 5

Reduced fraction:  

3 /8

Therefore, 15/40 simplified to lowest terms is 3/8.

3 0
3 years ago
Help me with these please
mixas84 [53]

Answer:

A) SAS

Step-by-step explanation:

The picture gives us that two sides are congruent. We can see that an <em>angle</em> is congruent as well because they share a common point at their tip.

If we look at just the area of intersection, it looks like an X. Think of the X as two lines intersecting. Each side equals 180°, and because both triangles are made up of those sides, we can conclude that the angles are congruent as well.

Hope this helps!

3 0
3 years ago
Other questions:
  • What are common mutipiles of 5 and 8
    14·1 answer
  • Annisa wrote an expression the product of 6.2 and the sum of 3c and 8 what are the factors of the expression
    7·2 answers
  • Analyze the diagram below and complete the instructions that follow.
    12·1 answer
  • Adina is constructing a line perpendicular to YJ . She has already constructed two arcs as shown. She moves her compass point to
    14·2 answers
  • The product of 5 and the sum of 12 and a certain number is 10. What is the number 4​
    11·1 answer
  • The Mayors of two small towns that adjoin a large community have engaged in an argument on which of their cities is safer, with
    10·1 answer
  • Please help me with number two and three :)
    11·1 answer
  • True or false
    8·1 answer
  • What is another way to represent 3%?<br> A) 0.3<br> B) 3<br> C) 0.03<br> D) 3/10
    5·2 answers
  • If the diagonal of a rectangle measures 60 inches and one side measures 48 inches, what is the length of the other side of the r
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!