1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serggg [28]
3 years ago
15

How can you use the order of operation to explain why you cannot combine the variable terms before using the distributive proper

ty when solving the equation 7(x+5)-x=42
Mathematics
1 answer:
bazaltina [42]3 years ago
7 0

Answer:

Step-by-step explanation:

The Order of Operations is very important when simplifying expressions and equations. The Order of Operations is a standard that defines the order in which you should simplify different operations such as addition, subtraction, multiplication and division.

This standard is critical to simplifying and solving different algebra problems. Without it, two different people may interpret an equation or expression in different ways and come up with different answers. The Order of Operations is shown below.

Parentheses and Brackets -- Simplify the inside of parentheses and brackets before you deal with the exponent (if any) of the set of parentheses or remove the parentheses.

Exponents -- Simplify the exponent of a number or of a set of parentheses before you multiply, divide, add, or subtract it.

Multiplication and Division -- Simplify multiplication and division in the order that they appear from left to right.

Addition and Subtraction -- Simplify addition and subtraction in the order that they appear from left to right.

Before we begin simplifying problems using the Order of Operations, let's examine how failure to use the Order of Operations can result in a wrong answer to a problem.

Without the Order of Operations one might decide to simplify the problem working left to right. He or she would add two and five to get seven, then multiply seven by x to get a final answer of 7x. Another person might decide to make the problem a little easier by multiplying first. He or she would have first multiplied 5 by x to get 5x and then found that you can't add 2 and 5x so his or her final answer would be 2 + 5x. Without a standard like the Order of Operations, a problem can be interpreted many different ways

You might be interested in
Figure out this missing number pattern:\<br> 1,1,2,3,5_,_,_
Mamont248 [21]
What you have here is the fibonacci sequence. 
Each number in the sequence adds itself to the number before it.
1+1 = 2
1+2 = 3
3+2 = 5
5+3 = 8
8+5 = 13
the sequence is 0,1,1,2,3,5,8,13
8 0
2 years ago
What is the solution for x in the equation (-4(x+1)+7x=8)?
a_sh-v [17]
-4(x + 1) + 7x = 8
-4x - 4 + 7x = 8
3x - 4 = 8
3x = 8 + 4
3x = 12
x = 12/3
x = 4 <===
6 0
3 years ago
What is the midpoint of the line segment with endpoints ( 3.5,2.2) and (1.5,-4.8)?
Fantom [35]

Answer:

Option A) (2.5,-1.3) is correct

The midpoint of the given line segment is M=(2.5,-1.3)

Step-by-step explanation:

Given that the line segment with end points (3.5, 2.2) and (1.5, -4.8)

To find the mid point of these endpoints midpoint formula is M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

Let (x_1,y_1) be the point (3.5, 2.2) and (x_2, y_2) be the point (1.5, -4.8)

substituting the points in the formula

M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

M=\left(\frac{3.5+1.5}{2}, \frac{2.2-4.8}{2}\right)

=\left(\frac{5}{2}, \frac{-2.6}{2}\right)

=\left(2.5,-1.3\right)

Therefore M=(2.5,-1.3)

The midpoint of the given line segment is M=(2.5,-1.3)

8 0
3 years ago
Help please!!!! Best answers!!
Snezhnost [94]
A Probability near 1 Indicates an Unlikely Event . I'm Guessing
8 0
3 years ago
Read 2 more answers
The temperature dropped 12F in 8 hours .if the final temperature was -7,what was the starting temperature
bekas [8.4K]
Just add 12 to -7, -7 -6 -5 -4 -3 -2 -1 0 1  2  3  4  5  6  7  8  9  10  11  12
6 0
3 years ago
Other questions:
  • Please I need help I don’t know this.!
    6·2 answers
  • PLEASE HELP!!!!
    11·2 answers
  • 50 is 40%of what number
    8·1 answer
  • Is this a relation a function
    8·1 answer
  • 2x+5y=11 and 4x+3y=1 solve with elimination
    5·1 answer
  • Simplify the expression (4x − 3)(x + 5).
    8·2 answers
  • What expression is equivalent to 12 - 1/2(x + 12)
    15·1 answer
  • After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 lb. What was Lisa's original weight?​
    13·2 answers
  • What is the difference? ​
    9·1 answer
  • A parabola can be drawn given a focus of (7, -11) and a directrix of
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!