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4 years ago

5

How can you use the backward problem-solving strategy to solve a two-step equation

1 answer:

neonofarm [45]4 years ago

5 0

Let's use the equation 5x - 20 = 10 as an example for this.

To work backwards from this, you would add the same amount to each side.

You want to isolate the 5x so that you can solve for x.

To do that, you would add 20.

But again, you must add and subtract the same amount to both sides.

So it would look a bit like this:

5x - 20 + 20 = 10 + 20

That would simplify to 5x = 30, or in other words, x = 6.

Basically, you isolate the multiple of the variable then divide the answer to the equation from that multiple.

In the example, 5 is the multiple and after isolating it, the answer was 30.

30 ÷ 5 = 6

x = 6

Hope this helps :)

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Answer:

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The prime factors are: 2 x 2 x 89

or also written as { 2, 2, 89 }

Written in exponential form: 2² x 891

Step-by-step explanation:

56 ÷ 2 = 178 - No remainder! 2 is one of the factors!

178 ÷ 2 = 89 - No remainder! 2 is one of the factors!

89 ÷ 2 = 44.5 - There is a remainder. We can't divide by 2 evenly anymore. Let's try the next prime number

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....

..

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3 years ago

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Answer:

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How many like terms are in the expression? 14 x minus 14 y 7 minus x z 2 x 0 2 3 5.

Cerrena [4.2K]

Like terms are those terms, which have the common variable with same powers.

The number of like terms in the given expression are 3, which is $(14x,-x,2x)$ . the option 3 is the correct option.

<h3>What is like terms?</h3>

In the algebra or the algebraic expression the like terms are those terms, which have the common variable with same powers.

Given information-

The given expression in the problem is,

$14 x -14 y+ 7 - x+ z+ 2 x$

The given expression is the algebraic expression which 3 number of unknowns variables.

There is total 6 terms in the given expression. In which 5 terms consists the variables and one term is constant.

In the given expression,

The total number of terms with variable x are 3 which are, $(14x,-x,2x)$ .

The total number of terms with variable y is 2 which is $-14y$ .

The total number of terms with variable z is 1 which is $z$ .

The total number of constant terms is 1 which is 7.

Thus the number of like terms in the given expression are 3, which is $(14x,-x,2x)$ . the option 3 is the correct option.

Learn more about the like terms here;

brainly.com/question/1779134

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