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allochka39001 [22]
3 years ago
14

Find one value of x that is a solution to the equation: (3x + 7)2 = -6x – 14

Mathematics
2 answers:
lara [203]3 years ago
8 0

Answer: x = -7/3

Step-by-step explanation:

https://www.symbolab.com/solver/step-by-step/%5Cleft(3x%20%2B%207%5Cright)2%20%3D%20-6x%20-%2014

there are the steps

aliya0001 [1]3 years ago
8 0

Answer:x=-7/3

                   

Step-by-step explanation:(3x+7)(2)=−6x−14

(3x)(2)+(7)(2)=−6x+−14(Distribute)

6x+14=−6x+−14

6x+14=−6x−14

6x+14+6x=−6x−14+6x

12x+14=−14

12x+14−14=−14−14

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3 0
3 years ago
At a park, there are 38 people playing tennis some or playing doubles and some are playing singles there are 13 matches in progr
dmitriy555 [2]
X = number of singles matches
y = number of doubles mnathes

so we have the equation x + y = 13.......(1)

also 

2x + 4y  = 38 ...........(2)

(1) and (2) are the required equations

b)  Find how many maches are in progress by solivng the above equations:-

x + y  =  13   multiply this by -2:-
-2x - 2y = -26
2x + 4y = 38   Adding to removes the  terms in x:-

2y = 12

y = 6  

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So the answer is  6 double matches and 7 singles are in progress.
5 0
2 years ago
Plase help me I already set the equation up I just need you to solve it.
masya89 [10]

\sf \frac{6}{30}  =  \frac{x}{100}

Solve for x by cross multiplication

\sf6 \times 100 = x \times 30

  • Multiply the numbers

\sf \: 600 = 30x

  • Swap the sides of equation

\sf \: 30x = 600

  • Divide both sides of equation by 30

\boxed{ \tt \: x = 20}

3 0
2 years ago
Read 2 more answers
Find x please help asap
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Answer:

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2 years ago
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