why can you write a subtraction problem as an addition problem? How do you write a subtraction problem as an addition problem?

Answers

Answer 1

Answer: To write a subtraction problem as an addition problem, just switch the numbers a little. For example:

11 - 5 = ?

Just write it like this:

5 + ? = 11

These two problems will get the same answer. Watch:

11 - 5 = 6

5 + 6 = 11

Both of these work because all three numbers ( two main ones and the answer) Can be switched around in different orders depending on the operation.

Hope this helps, WyattMarine501

Answer 2

Answer:

Hi there!

This is why...

$5+?=30$

$30-5=?$

How you do it...

$5+25=30$

$30-5=25$

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Complete the standard form of the equation –4y = 3 – 2x.

Answers

Ax + By = C is the standard form. Try to see how - 4y = 3 - 2x can fit into Ax + By = C.

Add 2x on both sides to make the x variable present on the other side of the equation.
Now we get
2x - 4y = 3.

A is 2 since that is the number which precedes x.
B is -4 since that is the number which precedes y.
C is 3.
So - 4y = 3 - 2x in standard form would be 2x - 4y = 3.

Whats 1812 divided by 4

Answers

453 is the answer its really easy

What is the equation in point-slope form of the line that passes through the point (−1, −4) and has a slope of –3 ?

Answers

Answer:

y + 4 = -3(x + 1)

Step-by-step explanation:

point-slope form : y - y2 = m (x - x2)

In this case m = -3 and x2 = -1, y2 = -4

The equation in point-slope form

y + 4 = -3(x + 1)

Sarah needs 4/6 yard of ribbon to wrap a gift. She has 6 pieces of ribbon with the following lengths. She can cut the piece if it is too long.

Answers

I will add the length and convert it to yards and then subtract it from 4/6 yards.

If light travels 671,000,000 miles per hour, how many miles will it travel in one minute?

Answers

671,000,000 mph / 60 min = 11183333.3 Miles per Minute

$1\ min=\frac1{60}h\n \n v=\frac st\n s=vt\n \n s=671000000 \cdot \frac1{60} \approx 11183333\ mil$

8x+15=3x-20 please explain how to solve this

Answers

8x + 15 = 3x - 20

First, take away '3x' from both sides.
$8x + 15 - 3x = -20$
Second, subtract '8x - 3x' to get '5x'.
$5x + 15 = -20$
Third, take away '15' from both sides.
$5x = -20 - 15$
Fourth, add '-20 - 15' to get '-35'.
$5x = -35$
Fifth, divide both sides by '5'.
$x = (35)/(5)$
Sixth, how many times does 5 go into 35? 35 ÷ 5 = 7.
$x = -7$

Answer: x = -7

You said 8x + 15 = 3x - 20

Subtract 3x from each side: 5x + 15 = - 20

Subtract 15 from each side: 5x = - 35

Divide each side by 5 : x = - 7

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