Question

List all the elements of each set. Set of the values of x that turn equation 0.7(x−7)−4.9=5.7 into a true statement

Answer 1

Answer: 22.14 (22.1428571429)

Step-by-step explanation:

OK

Let's Start with the equation

0.7(x−7)−4.9=5.7

Add 4.9 to both sides

0.7(x-7)=10.6

Divide both sides by 0.7

x-7= 15. 1428571429

Add 7 to both sides

x= 22.1428571429 or 22.14

Answer 2

An equation is formed of two equal expressions. The value of x that satisfies the equation 0.7(x−7)−4.9=5.7 is 22.1428.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

To know the values of x that satisfy the equation, solve the given equation for x,

$0.7(x-7)-4.9=5.7\\\\0.7(x-7) = 5.7 +4.9\\\\0.7(x-7) = 10.6\\\\(x-7)=\dfrac{10.6}{0.7}\\\\x-7= 15.1428\\\\x = 22.1428$

Hence, the value of x that satisfies the equation 0.7(x−7)−4.9=5.7 is 22.1428.

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