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Chapter 3: Q47. (page 151)

Write and solve an equation for the following verbal sentence: Nine more than 3 times a number is equal to 7 less than twice the number. (Lesson 3.3)

Short Answer

Expert verified

The number is鈭�16 .

Step by step solution

01

– Set up the equation

Let the number be x.

Given that,

Nine is more than 3 times a number = seven less than twice the number.

So,9+3x=2x鈭�7 .

02

– Solve for x

9+3x=2x鈭�79+3x鈭�9鈭�2x=2x鈭�7鈭�2x鈭�9x=鈭�16

Therefore, the solution of the equation isx=鈭�16 .

03

– Conclusion

The number isx=鈭�16 .

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Most popular questions from this chapter

Solve the equation. Check your solution.

x+3.5=9.2

Explain why the equation 5z + 2 = 5z has no solution.

Explain how the graph of x>5 is different from the graph of x鈮�5.

Solve the inequality. Graph and check your solution.

7鈮�5x-3

Find the value of a variable that, when substituted into an inequality, makes a true statement is a(n)鈥︹��.

See all solutions

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