2 years ago

Twice a number added to another number is –8. The difference of the two numbers is 2. Find

Mathematics

1 answer:

Fantom [35]2 years ago

8 0

Answer:

-2 and -4

Step-by-step explanation:

→ Make variable's for each number

x is the first variable and y is the second

→ Form equations

2x + y = -8

x - y = 2

→ Solve

3x = -6

→ Divide both sides by 3

x = -2

→ Resubstitute that into one of the equations

-2 - y = 2

→ Add 2 on both sides

-y = 4 therefore y = -4

You might be interested in

Which expression is equal to 5/9

lesya [120]

Hello, There are endless expressions. Since, you multiply this fraction by a costant k / k

If k = 2

Then,

(5/9) = ( 5/9) × ( k / k)

= (5/9) × ( 2/2)

= (5 × 2 / 9×2)

= 10 / 18
________________

The only restriction for k is zero and the infinite. Because there is no "0/0" and "infinito/ infinito" at math.

3 0

2 years ago

My hw says, "suppose E has a coordinate of -1 And EG= 7" what is the possible coordinate of G?

evablogger [386]

Answer:

-8,6

Step-by-step explanation:

from what i can tell this is a 1D problem. |E-G|=7, and E=-1, so -1-G=+-7. G=-8 or 6

7 0

2 years ago

Read 2 more answers

Which variable has the most impact on growing your money? If you could increase one of the variables in the compound interest fo