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1 year ago

-3=x+5 what I need to do with a negative and positive number?

Mathematics

1 answer:

Inga [223]1 year ago

8 0

In this case, we'll have to carry out several steps to find the solution.

Step 01:

-3=x+5

x = ?

Step 02:

We must apply the algebraic properties.

-3 = x + 5

- 3 - 5 = x

- 8 = x

The answer is:

x = - 8

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3 years ago

−3(y+5)=15 someone please help me with this question my assignment is already late

AnnyKZ [126]

Answer: -10

Step-by-step explanation:

Simplifying

-3(y + 5) = 15

Reorder the terms:

-3(5 + y) = 15

(5 * -3 + y * -3) = 15

(-15 + -3y) = 15

Solving

-15 + -3y = 15

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '15' to each side of the equation.

-15 + 15 + -3y = 15 + 15

Combine like terms: -15 + 15 = 0

0 + -3y = 15 + 15

-3y = 15 + 15

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-3y = 30

Divide each side by '-3'.

y = -10

Simplifying

3 0

3 years ago

The height of a parallelogram is three times its base. If the area is 972 square inches, what is the base and height?

Fed [463]

So h is 3x
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4 years ago

(5,-6) and (4,3) find the slope

klio [65]

Answer:

$\displaystyle m = -9$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Identify

Point (5, -6)

Point (4, 3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m = \frac{3--6}{4-5}$
[Fraction] Subtract: $\displaystyle m = \frac{9}{-1}$
[Fraction] Divide: $\displaystyle m = -9$

3 0

3 years ago