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mestny [16]
3 years ago
13

How do I solve this problem? -17=2x+7

Mathematics
1 answer:
Airida [17]3 years ago
4 0
Answer
x=-12
Explanation

Move the terms
-17-2x=7

Add the numbers
-2x=24

Divide both sides of the equation by -2
x=-12

Hope this helps:)
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(x + y + 3)(x + y - 4)
ohaa [14]

Answer:

(X+Y+3)(X+Y-4)

= X^2+XY-4X+XY+Y^2_4Y+3X+3Y-12

=X^2+Y^2+2XY-X-Y-12

Step-by-step explanation:

5 0
3 years ago
Unit4: Congruent Triangles Hw 1: Classifying Triangles Gina Wilson (All things algebra) 2014
anastassius [24]

Answer:

  • 12. x = 6, side = 83
  • 13. x = 18, side = 29
  • 14. x = 11, sides = 74, 74 and 37
  • 15. x = 23, sides = 95, 95 and 108

Step-by-step explanation:

<em>11 is incomplete, can't solve</em>

12

<u>The triangle is equilateral, so all sides are equal, using one pair to find x:</u>

  • 13x + 5 = 17x - 19
  • 17x - 13x = 5 + 19
  • 4x = 24
  • x = 6

<u>Each side is:</u>

  • 13*6 + 5 = 78 + 5 = 83

13.

<u>Sides are equal as triangle is equilateral</u>

  • QR = 2x - 7
  • RS = 5x - 61
  • QS = x + 11

<u>Finding x by comparing two sides</u>

  • 2x - 7 = 5x - 61
  • 5x - 2x = 61 - 7
  • 3x = 54
  • x = 18

<u>Sides are equal</u>

  • 18 + 11 = 29

14.

<u>Equal sides of isosceles triangle:</u>

  • CD = DE
  • 9x - 25 = 6x + 8
  • 9x - 6x = 8 + 25
  • 3x = 33
  • x = 11

<u>Sides are</u>

  • CD = DE = 9*11 - 25 = 99 - 25 = 74
  • CE = 10*11 - 73 = 110 - 73 = 37

15.

<u>Equal sides of isosceles triangle WXY, WX = WY</u>

  • WX = 4x + 3
  • WY = 7x - 66
  • XY = 5x - 7
  • 4x + 3 = 7x - 66
  • 7x - 4x = 3 + 66
  • 3x = 69
  • x = 23

<u>Sides are:</u>

  • WX=WY = 4*23 + 3 = 95
  • XY = 5*23 - 7 = 108
6 0
3 years ago
Read 2 more answers
Math- Look at the picture below i will mark you as brainliest if you answer correctly.
densk [106]

Answer:

A

Step-by-step explanation:

Substitue 15 into the x value and complete the equation.

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2 years ago
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Determine the number of terms in each algebraic expression (6a+9)-7b​
Vesnalui [34]

Answer:

3

Step-by-step explanation:

(6a+9)-7b

There are 3 terms

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Write a posite or negative number :depositing $85 in a bank account
DedPeter [7]
I do not understand but if you deposit 85 dollars in a bank account it will most likely be positive unless you owe the bank money.


Hope I helped


Brainliest if satisfied
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