3 years ago

Solve the system of equations y=2x+3 and 4x-2y=-6

Mathematics

1 answer:

SashulF [63]3 years ago

6 0

Substitute 2x + 3 for y

4x - 2(2x+3) = -6
4x - 4x - 6 = -6
-6 = -6
true, so the solution is all real numbers

You might be interested in

Fran painted 1/2 of the fence around her house.What are two other ways to name 1/2

saveliy_v [14]

6/12 or 4/8 is a possible answer

4 0

3 years ago

Simplify the following expression, if you can see the picture the expression is as follows:

Kobotan [32]

$\sqrt{40}=2 \sqrt{10}$ and $\sqrt{90} = 3\sqrt{10}$ , so we have $\sqrt{10}(2-1+3)$ . which is $4 \sqrt{10}$ .

8 0

3 years ago

Mr. Chen spends $32 for tickets to a play. If the tickets cost $8 each how many tickets does Mr. Chen buy?

Olegator [25]

Hey!

You must divide the amount of money he spent by the amount of money each ticket costs:

32 ÷ 8 = 4

So, Mr. Chen bought 4 tickets.

8 0

3 years ago

Read 2 more answers

Solve for I when 3/5 +I-1/15

Ugo [173]

Answer:

23 over 15 or 1.533

Step-by-step explanation:

Group like terms:

1+(3/5+-1/15)

Find LCD:

1+9/15+-1/15

Combine numerators:

15/15+8/15

And you get 23/15

Simplified:1 8/15

Decimal: 1.533

4 0

3 years ago

If ab = c - d, which of the following is an expression for d in terms of a, b, and c?

horsena [70]

ANSWER

$d = - ab + c$

EXPLANATION

The given expression is

$ab = c - d$

To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.

This means that, we need to isolate d on one side of the equation while all other terms are on the other side.

We subtract from both sides of the equation to obtain,

$ab - c = - d$

We now divide through by -1, to get,

$- ab + c = d$

Or

$d = - ab + c$

The topic is change of subject

3 0

4 years ago