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mamaluj [8]
3 years ago
15

Solve −2(2x + 5) − 3 = −3(x − 1).

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
7 0
X=-16 -2(2x+5)-3=-3(x-1) (-4x-10)-3=-3x+3 -4x-13=-3x+3 Move -13 to the right side by adding it to +3 and itself to cancel the original -13 out, and move -3x to the left side by adding it to -4x and itself to cancel the original -3x out -4x+3x=3+13 -1x=16 Divide -1 from both sides x=-16
harkovskaia [24]3 years ago
5 0
- - Solve for "x"

Steps:
You need to simplify for both sides of your equation
Then add your "3x" to both of the sides of the problem
Now add 13 to both sides
and then final step is to divide both sides by "-1"

Final answer:

x= -16 


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2x squared + 9x=-5 i need to solve for x
In-s [12.5K]
2x^2+ 9x=-5 \\ \\2x^2 + 9x+5 =0 \\\\a=2, \ \ b=9 , \ \ c=5 \\\\\Delta =b^2-4ac = 9^2 -4\cdot 2\cdot 5 =  81-40=41 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{-9-\sqrt{41}}{2\cdot 2 }=\frac{-9-\sqrt{41}}{ 4 }\\\\ x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{-9+\sqrt{41}}{2\cdot 2 }=\frac{-9+\sqrt{41}}{4 }
3 0
3 years ago
Show your working please.​
iren2701 [21]

Offer B is the best value for money because each kg cost is £0.61 and in offer 'A' each kg cost is £0.7.

<h3>What is a fraction?</h3>

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:
2 bags for £35

2 bags means 50 kg (2×25)

Each kg cost = 35/50 = £0.7 per kg

3 bags for £92.50

3 bags means 150 kg

Each kg cost = 92.50/150 = £0.61 per kg

As we can see, offer B has a low cost per kg

Thus, offer B is the best value for money because each kg cost is £0.61 and in offer 'A' each kg cost is £0.7.

Learn more about the fraction here:

brainly.com/question/1301963

#SPJ1

6 0
2 years ago
Question 1 x - 2.5 = -3​
MAVERICK [17]

Answer:

x = -.5

Step-by-step explanation:

x - 2.5 = -3​

Add 2.5 to each side

x - 2.5+2.5 = -3+2.5​

x = -.5

8 0
2 years ago
What is 9.33 as a fraction in simplest form
netineya [11]
9 33/100 is the answer
3 0
2 years ago
Read 2 more answers
HELP!! I DON'T KNOW WHAT TO DO
Kay [80]
3 1/4 cups for 13 servings...
(3 1/4) / 13 =
13/4 * 1/13 =
13/52 which reduces to 1/4 cup per serving

for 28 servings...
1/4 * 28 = 28/4 = 7 cups <== 28 servings requires 7 cups of flour
3 0
3 years ago
Read 2 more answers
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