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
nordsb [41]
3 years ago
8

2(a-7)=a+4 15 6PLS HELPPPPPPPPPPP​

Mathematics
2 answers:
muminat3 years ago
8 0

Answer:

a = 18

Step-by-step explanation:

2(a-7)=a+4

Distribute 2 into left side: 2a -14 = a + 4

subtract a from both sides  2a-a-14 = a+4-a

Simplify: a  - 14 = 4

Add 14 to both sides: a - 14 + 14 = 4 +14

Simplify:   a = 18

If wanted, plug a into original to double check work:

plug in: 2 (18-7) = 18+4

do parenthesis first: 2 (11) = 18+4

do multiplication : 22 = 18+4

additions: 22 =22

a = 18 is correct.

Otrada [13]3 years ago
4 0

Answer:

A=18

Step-by-step explanation:

2(a-7)=a+4

2a-14=a+4

add 14 to both sides

2a=a+18

subtract a from both sides

a=18

You might be interested in
What is 30% written as a decimal
patriot [66]

Answer:

.30 or .3

Step-by-step explanation:

You move decimal twice because it is a percentage

5 0
4 years ago
Read 2 more answers
Find three consecutive intergers such that three times the third is 102 more than the sum of the first and second.
Pavlova-9 [17]

Answer:

A) x + x+1 + x+2

We don't need equation A)

B) 3*(x+2) = (x + X+1) +102

3x + 6 = 2x + 1 + 102

x = 97

Numbers are 97, 98 and 99

Step-by-step explanation:

6 0
4 years ago
Principal root of 144
Alex Ar [27]
√144 = √12^2 = 12

=========================
6 0
4 years ago
Read 2 more answers
How do I solve 2x-3y=12 step by step?
anzhelika [568]

Answer:

Step-by-step explanation: •Subtract 2x from both sides of the equation.

-3y = 12 - 2x

•Divide each term by -3y = 12 - 2x by -3.

-3y/-3 = 12/-3 + -2x/-3

•Cancel the common factor of -3.

12/-3 + -2x/-3

•Divide y by 1.

y = 12/-3 + -2x/-3

•Simplify each term.

•Divide 12 by -3.

y = -4 + -2x/-3

•Dividing two negatives values results in a positive value.

y = -4 + 2x/3

4 0
3 years ago
Graph f(x) = –2|x + 4|<br><br> Khan academy
koban [17]

Answer:

i cant even see the graph

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 7 billion in standard form?
    9·2 answers
  • The volume of a cylinder is the base (B) times the length of its height (h).
    10·2 answers
  • The population of a city increases by 10,000 per year. The starting population is 800,000.
    13·1 answer
  • Can anybody help please
    12·1 answer
  • 5,467.219 rounded to the nearest whole??
    15·2 answers
  • What is the output, or y-value, when you input x = 2 into the function:<br> y = 2x3 − 6x.
    6·2 answers
  • What is the Increasing Interval?
    8·1 answer
  • HELP QUICK
    13·1 answer
  • Determine whether the data in the table display exponential behavior. Explain why or why not
    7·1 answer
  • Find all the values in the interval (0.1, 0.4]
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!