3 years ago

Can some one explain to me what substitution is and how to use it to solve equations?

Mathematics

1 answer:

Yakvenalex [24]3 years ago

5 0

Answer:

Step-by-step explanation:

Say that your equation is 2x+4=8, x=2

you would plug in the 2 where your x is so, 2(2) +4=8

then you'd solve regularly.

Hope my answer has helped you!

You might be interested in

The ratio of hotdogs to hamburgers is 8:3. if 272 hotdogs were sold how many hamburgers were sold.

Blababa [14]

Answer:

102 hamburgers

Step-by-step explanation:

Hotdogs: 8 272

Hamburgers: 3 HB

8/3=272/HB

3*272=8HB

816=8HB

HB=102

7 0

3 years ago

What is the solution to this inequality?<br> -4X > 500

Tcecarenko [31]

Answer: x < -125

Step-by-step explanation:

-4x / (-4) < 500 / (-4)

x < -125

7 0

3 years ago

A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.

dem82 [27]

The answer for this question, to the correct significant digits, would be 39 feet squared. This can be worked out in the following way: S=a*a ft^2S=6.25*6.25S=39.0625?39.1 9and then round this up to find the answer of 39 square feet)

4 0

3 years ago

What is the value of :-<br><br>=》<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20-%204%7D%7B5%20-%205%7D%20" id="TexFormu

Tresset [83]

Answer:

the value is undefined

Step-by-step explanation:

hey there,

$\frac{4 - 4}{5 - 5}$

$\frac{0}{0}$

0 divided by 0 is undefined

4 0

2 years ago

Need help with math please

Tamiku [17]

The answer is c
(0,8) is the y intercept so the +.. is +8
then pug in 4 to x and find which one equal 0

3 0

2 years ago