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N76 [4]
3 years ago
12

The first step in solving the equation 3x+4=20 is to ____ from each side. This is an example of the ________ Property of _______

___.
Mathematics
2 answers:
ki77a [65]3 years ago
4 0

3x+ 4 = 20

First you SUBTRACT 4 from both sides . Since these are inequalities we do reverse PEMDAS (Parentheses , Exponents , Multiply , Divide , Add ,Subtract). Then you will have an equivalent equation of

3x=16

Now we have to isolate X . So we divide 3 by both sides . Which will get 5.3333...

Therefore , The answer will be

The first step in solving the equation is to<u> SUBTRACT </u> from each side . This is an example of the <u>subtraction</u> property of <u>EQUALITY</u>

Ira Lisetskai [31]3 years ago
4 0

Answer:

Subtract 4 ,

Subtraction property of equality

Step-by-step explanation:

When we solve a one variable equation then we isolate the variable in the left side,

Here, the given equation,

3x + 4 = 20,

For isolating x on left side first we need to remove constant term in the left side,

For this we need to subtract 4 from each side,

That is, 3x = 20 - 4

∵ Subtraction property of equality states that an equation does not change when we subtract same number from each side of the equation.

i.e. a = b ⇒ a - c = b - c, Where, a, b and c are real numbers.

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The greatest common factor of any two even numbers is always even. determine weather the statement is true or false. if true exp
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3 0
3 years ago
What's the slope of the line passing through the points -1, 8 - 7, 3​
tatuchka [14]

Answer:

slope = 5/6

Step-by-step explanation:

Since you were given two points, you can use the point-slope formula to find the slope. The general equation looks like this:

y₁ - y₂ = m(x₁ - x₂)

In this formula, "m" represents the slope. To find the slope, plug the values from the two points into the equation. Make sure to put the values from the same point in the variable with the same number.

Point 1: (-1, 8)

Point 2: (-7, 3)

y₁ - y₂ = m(x₁ - x₂)                          <----- Original formula

8 - y₂ = m(-1 - x₂)                           <----- Plug in "x" and "y" values from Point 1

8 - 3 = m(-1 - (-7))                           <----- Plug in "x" and "y" values from Point 2

5 = m(-1 - (-7))                                <----- Simplify left side

5 = m(6)                                        <----- Simplify inside parentheses

5/6 = m                                       <----- Divide both sides by 6

5 0
2 years ago
Fatheya purchased a prepaid phone card for $25. Long distance calls cost 12 cents a minute using this card. Fatheya used her car
Pachacha [2.7K]

Answer:

22 minutes

Step-by-step explanation:

First you take away the original amount away from the remaining amount.

$25 - $22.36 = $2.64

Then you take that number and divide it by the cents per minute.

$2.64 ÷ 12 = 0.22

Then that's your answer!

Her call lasted 22 minutes.

7 0
3 years ago
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