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
Hunter-Best [27]
3 years ago
8

Which equation has a solution of -2?

Mathematics
1 answer:
kykrilka [37]3 years ago
8 0

Solution:

I'm not sure if there is law for it or not, but you can replace each x to -2 if both sides are equal then the equation is true.

7x - 4 = 6x + 5\\7(-2) - 4 = 6(-2) + 5\\-14-4=-12+5\\-18\neq -7

A. is incorrect.

4x + 3 = 8x - 5\\4(-2) + 3 = 8(-2) - 5\\-8+3=-16-5\\-5\neq -21

B. is incorrect.

6x + 4 = 3x + 10\\6(-2) + 4 = 3(-2) + 10\\-12+4=-6+10\\-8\neq 4

C. is incorrect.

-5x - 3 = -7(x +1)\\-5(-2) - 3 = -7((-2) +1)\\10-3 =-7(-1)\\7=7

D. is correct.

Answer:

D. -5x-3=-7(x+1)

<em>Hope this was helpful.</em>

You might be interested in
Solve for base. 450 crates is 0.90% of ___ crates
Tema [17]
Well... if 450 is 90% of the crates then 500 is 100%. 450 crates is 0.90% of 500 crates.
8 0
3 years ago
the height of a triangle is 4x inches and the base is (5x+1) inches. the area of a triangle is 500 square inches. what are the d
marin [14]
You mean what x is? Please add more detail.
8 0
3 years ago
Write the fraction as the product of a whole number and. Unit fraction 2/5
zavuch27 [327]

Answer:

I don't know exactly what you mean but I think the answer is<u> .4</u>

Step-by-step explanation:

divide 2 and 5

4 0
3 years ago
Bro 50 points to whoever answers these with steps
Evgen [1.6K]

Answer:

do you think you can write them in chat or copy n paste?? please because i can solve these but i need a beet look

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Write in standard notation.
lora16 [44]
This is how u write your question in standard form 196.75
4 0
3 years ago
Other questions:
  • There were 42 passengers on a local airplane flight. First-class fare was $80, and coach fare was $64. If the revenue for the fl
    12·1 answer
  • Does 27/60 -8/60=19/60?
    7·1 answer
  • A 10​-ft vertical post casts a 16​-in shadow at the same time a nearby cell phone tower casts a 120​-ft shadow. How tall is the
    8·1 answer
  • Anthony borrows $6.50 from a friend to pay for a sandwich and drink at lunch. Then he borrows $3.75 from his sister to pay a lib
    6·3 answers
  • Serena uses chalk to draw a straight line on the sidewalk. The line is 12 ft long. She wants to divide the line into sections th
    15·1 answer
  • Find the volume of the solid bounded by z = 2 - x2 - y2 and z = 1. Express your answer as a decimal rounded to the hundredths pl
    11·1 answer
  • A car traveling at 10 m/s starts to slow down. It comes to a complete stop
    12·1 answer
  • You have learned three ways for solving systems of equations: graphing, substitution and elimination.
    13·1 answer
  • 4+ -1 2/3 please help
    15·2 answers
  • Determine a series of transformations that would map polygon ABCDE onto polygon A’B’C’D’E’?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!