All categories

3 years ago

X+2y=3 x-y=6 x=? y=?

2 answers:

3 0

Set each equation equal to either x or y.

I’ll do x.

x+2y-2y = 3-2y
(Simplify) x = 3-2y

x-y+y = 6+y
(Simplify) x = 6+y

(Set them equal to each other)
3-2y = 6+y

3-2y-6 = 6+y+2y

-3 = 3y

y = -1
x =5

spin [16.1K]3 years ago

3 0

Answer:

x=5

y=-1

Step-by-step explanation:

x+2y=3

x-y=6

x+2y=3

x=6+y

(6+y)+2y=3

x=6+y

6+y+2y=3

x=6+y

6+3y=3

x=6+y

3y=3-6

x=6+y

3y=-3

x=6+y

y=-3/3

x=6+y

y=-1

x=6-1

y=-1

x=5

You might be interested in

Ellie earns $11.35 per hour. Below you can see how many hours she worked last week. How much did Ellie earn last week? Round you

natita [175]

Answer:

Ellie earned $297.94

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What's the product and sum

Sladkaya [172]

Answer:

ur mom = gay

Step-by-step explanation:

7 0

2 years ago

Which of the following inequalities are correct?

Natali5045456 [20]

Answer:

A and B

Step-by-step explanation:

- 3/5 is less than -1/5 because it is farther away from 0 on a number line (also, when it comes to figure out which inequality is true with negative number, the smaller one is going to be greater because it is closer to 0 on a number line)

3/5 is greater than 1/5 because they are both positive and 3/5 is the bigger number

-1/5 is not less than -3/5 because if A is true, than this cannot be true because it is saying the exact opposite.

6 0

3 years ago

Write the first 4 terms of the sequence defined by the given rule f(n)=n2 -1

Softa [21]

Answer:

Step-by-step explanation:

Substitute n = 1, n = 2, n = 3 and n = 4 to the equation f(n) = n² - 1:

f(1) = 1² - 1 = 1 - 1 = 0

f(2) = 2² - 1 = 4 - 1 = 3

f(3) = 3² - 1 = 9 - 1 = 8

f(4) = 4² - 1 = 16 - 1 = 15

5 0

3 years ago

What is the degree of the polynomial?

DIA [1.3K]

Answer:

Step-by-step explanation:

The degree of the polynomial is the highest exponent of an expression. When more than one variable is present, its is the sum of exponents on one term in the expression.

The polynomial has terms xy, 3x^2, -7 and x. The term with the highest exponent sum is xy or 3x^2. Both have degree 2. The degree of the polynomial is 2.

8 0

3 years ago