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nlexa [21]
3 years ago
10

An equation is shown below: 5(2x - 8) + 15 = -15 Write the steps you will use to solve the equation and explain each step. (5 po

ints)
Mathematics
2 answers:
uranmaximum [27]3 years ago
8 0

Answer:

x=1

Step-by-step explanation:

To solve this question we will have to open the bracket first

So let's solve the question

5(2x-8)+15=-15

Bracket first

10x-40+15=-15

We will have to solve the question further

10x-25=-15

Add 25 to both sides

10x=10

Let's make x the subject of formula by dividing both sides by 10

x=1

Therefore x is 1

8090 [49]3 years ago
3 0

Answer:

x = 1

Step-by-step explanation:

5(2x - 8) + 15 = -15

Subtract 15 both sides

5(2x - 8) = -30

Divide both sides by 5

2x - 8 = -6

Add 8 both sides

2x = 2

Divide both sides by 2

x = 1

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So you have to first put put the equation in slope-intercept form.
-3x+4y=4
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then plug in y and solve for x
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3 years ago
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Aleksandr-060686 [28]

Answer:

Hello there!

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Hope this helps!!!

Step-by-step explanation:

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Step-by-step explanation:

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◆ QUADRATIC EQUATIONS ◆

given \: equation \: is \: , \\  \\  {x}^{2}  - 12x + 20 = 0 \\  \\  using \: quadratic \: formula \: , \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12) +  \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12)  -   \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{12 + 8}{2}  \:  \:  \:  \:  \: or \:  \:  \:  \: x =  \frac{12 - 8}{2}  \\  \\ x = 10 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: x = 2 \:  \:  \: ans.
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