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3 years ago

Solve 7(x + 4) = 49 I need help

2 answers:

6 0

X=3 is the answer
Solution- Divide both the sides by 7 and that will get you x+4=7 next move the constant to the right hand side and change the sign so it will be x=7-4 and then you just subtract the numbers and it will equal 3 so x=3 Is Your Answer

makkiz [27]3 years ago

4 0

First distribute
7(x+4)=49
7x+28=49

Subtract 28
7x+28=49
7x+28-28=49-28

Simply
7x=21

Divide
7x=21➗7

Simply
x=3

Solution
x=3

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FinnZ [79.3K]

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Further Explanation:

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The current salary of James is $\$ 42000.$

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The total investment of James can be calculated as follows,

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The time taken by James to recover $\$ 140000.$

$\begin{aligned}{\text{Time}} &= \frac{{140000}}{{56000}}\\&= 2.5{\text{ years}}\\\end{aligned}$

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Learn more:

Learn more about inverse of the function brainly.com/question/1632445
Learn more about range and domain of the function brainly.com/question/3412497
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Answer details:

Grade: High School

Subject: Mathematics

Chapter: Investment and return

Keywords: James, job, current salary, salary, $42000, earn, college, college degree, 2 years, complete, graduation, cost, $28000, per year, investment, recover, new salary, work, able, school, full time.

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