All categories

3 years ago

Solve the system by adding or subtracting -3x-3y=9 3x+8y=6

Mathematics

1 answer:

Montano1993 [528]3 years ago

5 0

Answer:

x = -6 y = 3

Step-by-step explanation:

Adding the two equations and you get, -3x-3y + 3x+8y= 6+9

=> 5y = 15

=> y = 3

Plug y in each equation

-3x -3(3) = 9

-3x -9 = 9

-3x = 18

x = -6

3x + 8(3) = 6

3x +24 = 6

3x = -18

x = -6

You might be interested in

The answer to this problem

telo118 [61]

Answer:

jdiddbhhuduh9ruruuehgruhrhudhheherj

5 0

2 years ago

What is the surface area of this rectangular prism?

tatuchka [14]

Answer:

290 in^2

Step-by-step explanation:

6 0

3 years ago

A manufacturer produces cherry, peppermint, cinnamon, and orange-flavored gum. Each flavor is available with sugar or sugar-free

Semenov [28]

Answer: The total number of different types of labels will the manufacturers have to produce = 24.

Step-by-step explanation:

Given: Choices for flavours = 4

Choices for sugar = 2 {either sugar or sugar free}

Choices for the qunatity = 3

By Fundamental counting principle,

Total number of different types of labels will have to produce = (Choices for flavors) x (Choices for sugar)x (Choices for the quantity )

= 4 x 2x 3

=24

Hence, the total number of different types of labels will the manufacturers have to produce = 24.

4 0

3 years ago

PLSSSS HELLPPPP MEEEEE I WILLL GIVEEE BRAINLIESSSTTT!!!!

earnstyle [38]

Answer:

$\displaystyle m=3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (6, 8)

Point (5, 5)

Step 2: Find slope m

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

Substitute in points [SF]: $\displaystyle m=\frac{5-8}{5-6}$
[Fraction] Subtract: $\displaystyle m=\frac{-3}{-1}$
[Fraction] Divide: $\displaystyle m=3$

6 0

3 years ago

Read 2 more answers

A group of 24 students have recess together. They are making teams to play a game. Each team has to have exactly 5 players, and

AysviL [449]

They can make 4 teams and have 4 players that won’t be in a team.

This is because 5*5 is 25 but they don’t have 25 players so you would have to go down which is 4*5=20. Sorry if that’s very confusing but hope that helps!

5 0

3 years ago