All categories

3 years ago

{ x + y = -2 { x - y = -8

Mathematics

2 answers:

g100num [7]3 years ago

7 0

Answer:

(-5, 3)

Step-by-step explanation:

Elimination seems like the best method to use here.

x+y=-2

x-y=-8

---------

2x=-10

Divide everything by two

x=-5

Now plug it back into one of the original equations,

-5+y=-2

Add 5 to everything

y=3

iogann1982 [59]3 years ago

7 0

Answer:

The solution is (-5, 3).

Step-by-step explanation:

If you have been told to solve this system of linear equations, start out by adding them together. The y terms then drop out, and we obtain:

2x = -10, implying that x = -5.

Selecting the first equation as our starting point in finding y:

-5 + y = -2.

We need to isolate y. To do this, add 5 to both sides:

y = -2 + 5, or y = 3.

Then the solution is (-5, 3).

You might be interested in

What’s the surface area

DerKrebs [107]

Answer:

Step-by-step explanation:

7 0

2 years ago

What is the measure of the missing angle? 76 166 86 156

BabaBlast [244]

Answer:

156

Step-by-step explanation:

It the whole line’s angle measure would be 180 degrees. If you subtract 24 from 180 You get 156.

Please give me Brainly answer.

5 0

3 years ago

Read 2 more answers

Bob opened a savings account with $115. He now saves$35 a month(x). Write an equation representing how much money (y) Bob has in

disa [49]

Answer:

y=115+35x

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Guys i need ur help fast please

Maslowich

Answer:

a) -3

b) 5

c) 7

d) 4

Step-by-step explanation:

We have the function $p(x)=5x^3-3x^2+2x^5+7$

a) We need to find the coefficient of $x^2$ .

This means that we need to find out what number is alongside the $x^2$ in this equation. From the function, we can find that it is -3

b) Now we need to find the degree of $p(x)$ . Recall that the degree refers to the highest power of x that is present. As $x^5$ is the largest power, our degree would be 5.

c) The constant term refers to the number within the function that does not have any x's with it. In this function, that number would be 7.

d) Now we need to find the number of terms. For this one, we just need to count how many terms are separated by + or - signs. There are 4 in this function.

6 0

3 years ago

Solve for x. 7^8=7^8×7^x

denis-greek [22]

Answer:

x = 0

Step-by-step explanation:

Apply the exponent rule.

$7^8=7^{x+8} \\$

If $a^{f(x)} = a^{g(x)} then f(x) = g(x)$

8 = x + 8

x = 0

3 0

3 years ago