Thursday

September 18, 2014

September 18, 2014

Posted by **JR** on Thursday, October 11, 2012 at 3:23am.

4n+(7+n)=52

4n+(n+7)=52

(4n+n)+7=52

5n+7=52

5n+7-7=52

5n=45

5n/5=45/9

n=9

- math -
**Reiny**, Thursday, October 11, 2012 at 8:35amOh my ....

necessary steps:

4n+(7+n)=52

4n + 7 + n = 52

5n + 7 = 52

5n = 52-7

5n = 45

n = 9

Your 4th last line should have been

5n+7-7 = 52-7 , ( remember "whatever you do to one side, you must do to the other". You didn't )

**Answer this Question**

**Related Questions**

matn - JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (...

math - Solve the linear equation: x+x+2+x+4+x+6=-28. State the property that ...

math - The equation: T= 2* pi* sqrt(2/3L/9.8) Solve for L. Please show the ...

math - Identify the property or rule that justifies each step in the calculation...

math - Identify the property or rule that justifies each step in the calculation...

math - Identify the property or rule that justifies each step in the calculation...

math - Identify the property or rule that justifies each step in the calculation...

math - simplify the following expression x+4(y+8x) Write the property that ...

Math - I am really have a tough time trying to solve this problem. I think my ...

Math - How do you do this Simultaneous Equation? 3x+4y=14 x+y=3 Please give me ...