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Anni [7]
2 years ago
6

5 + 4x - 2x = 8x + 11 + 12 Explain step by step PLEASE

Mathematics
2 answers:
mario62 [17]2 years ago
6 0
Simplify
5
+
4
x
−
2
x
5+4x−2x to
5
+
2
x
5+2x.
5
+
2
x
=
8
x
+
11
+
12
5+2x=8x+11+12

2 Simplify
8
x
+
11
+
12
8x+11+12 to
8
x
+
23
8x+23.
5
+
2
x
=
8
x
+
23
5+2x=8x+23

3 Subtract
5
5 from both sides.
2
x
=
8
x
+
23
−
5
2x=8x+23−5

4 Simplify
8
x
+
23
−
5
8x+23−5 to
8
x
+
18
8x+18.
2
x
=
8
x
+
18
2x=8x+18

5 Subtract
8
x
8x from both sides.
2
x
−
8
x
=
18
2x−8x=18

6 Simplify
2
x
−
8
x
2x−8x to
−
6
x
−6x.
−
6
x
=
18
−6x=18

7 Divide both sides by
−
6
−6.
x
=
−
18
6
x=−
6
18
​


8 Simplify
18
6
6
18
​
to
3
3.
x
=
−
3
x=−3
Yuliya22 [10]2 years ago
4 0

Answer:

The solution is x = -3

Step-by-step explanation: Please brainliest!

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olganol [36]

Answer:

The equation of the line is.

y=-\frac{5}{2}x-4

Step-by-step explanation:

Given:

The given points are (0, -4) and (-4, 6)

The equation of the line passing through the points (x_{1},y_{1}) and (x_{2},y_{2}) is.

\frac{x-x_{1}}{x_{2}-x_{1}}=\frac{y-y_{1}}{y_{2}-y_{1}}

Thus, the equation of the line that passes through the points (0, -4) and (-4, 6) is

\frac{x-0}{(-4)-0}=\frac{y-(-4)}{6-(-4)}

\frac{x}{-4}=\frac{y+4}{6+4}

-\frac{x}{4}=\frac{y+4}{10}

-\frac{10x}{4}=y+4

-10x=4(y+4)

-10x=4y+16

4y=-10x-16

The above equation is divided by 2 both sides.

2y=-5x-8

y=-\frac{5}{2}x-4

Therefore, the equation of the line that passes through the points (0, -4) and (-4, 6) is y=-\frac{5}{2}x-4

8 0
3 years ago
What is a good estimate for 470​% of 40​? Explain.
Harlamova29_29 [7]

Answer:

470% is equivalent to the decimal 4.7, which can be rounded to 5

So, 470% of 40 is approximately equal to 5 times 40

which is equal to 200

So, a good estimate for 470​% of 40 is 200.

4 0
2 years ago
One of Eric's steps is 18in long. How many steps would he take to walk 1 mile?
Evgesh-ka [11]

Answer:

3520 steps

Step-by-step explanation:

The first thing we must do is figure out how many inches are in a mile. (There are 63,360 inches in one mile). With that out of the way, we can now divide these inches by 18, since each of Eric's steps are 18 inches long, and we want to determine how many steps he would have to take. 63,360 divided by 18 is 3520. This means our answer is 3520 steps, and that is how many steps he must take to walk 1 mile. I hope you understood and please let me know if you still need help!

5 0
2 years ago
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All 150 eighth grade students at a local middle school were asked how many hours they studied during the week. Each row of the t
DENIUS [597]

Answer:

Row 2

Step-by-step explanation:

To find the mean, we add all the numbers and divide by the number of numbers

Row 1:  

(6+5+3+0+4)/5 = 18/5 = 3.6

Row 2:  

(4+5+3+5+6)/5 = 23/5 = 4.6

Row 3:  

(7+1+4+5+3)/5 = 20/5 = 4.0

Row 4:  

(4+2+5+6+3)/5 = 20/5 = 4.0

The greatest mean , or the largest mean is 4.6  or Row 2

6 0
3 years ago
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ziro4ka [17]
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