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3 years ago

What is the solution of the equation X + 5 = -9?

Mathematics

1 answer:

kirill115 [55]3 years ago

7 0

Answer:

-14

Step-by-step explanation:

We must isolate x by itself for solve for its value. To do so, we must subtract 5 on left side. What we do to one side, we do to the other side, so we subtract 5 from right as well. However, on right side, two negatives means we actually end up adding (and keeping the negative sign) and thus you get -14.

X + 5 - 5 = -9 -5

X = -14

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In ABC, the interior angle at A is 51° and the exterior angle at B is 119º. The interior angle at C measures

erastova [34]

Answer:

68 degrees

Step-by-step explanation:

To get the interior angle, we use an important triangle principle

The principle is that the sum of the opposite interior angles equal the exterior angle

Let the second interior angle be x

x + 51 = 119

x = 119-51

x = 68

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3 years ago

It takes one super giant pizza to feed three people if you invite 36 people how many peaches will you need

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3 years ago

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nataly862011 [7]

Step-by-step explanation:

The numbers to the right of 0 are positive. The numbers to the left of 0 are negative. 0 is neither positive nor negative.

6 0

4 years ago

Read 2 more answers

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mr Goodwill [35]

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Step-by-step explanation:

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3 years ago

2x+3y= 14 3х - 4 y = 4

goldenfox [79]

The solution to given system of equations are (x, y) = (4, 2)

Solution:

Given system of equations are:

2x + 3y = 14 ---------- eqn 1

3x - 4y = 4 --------- eqn 2

We have to solve the given system of equations

We can solve the above system of equations by elimination method

Multiply eqn 1 by 3

3(2x + 3y = 14)

6x + 9y = 42 --------- eqn 3

Multiply eqn 2 by 2

2(3x - 4y = 4)

6x - 8y = 8 ----------- eqn 4

Subtract eqn 4 from eqn 3

6x + 9y = 42

6x - 8y = 8

( - ) --------------

9y + 8y = 42 - 8

17y = 34

Substitute y = 2 in eqn 1

2x + 3(2) = 14

2x + 6 = 14

2x = 14 - 6

2x = 8

Thus the solution to given system of equations are (x, y) = (4, 2)

5 0

3 years ago