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Solve the equation using mental math.

2+n=-6

Short Answer

Expert verified

The solution of the equation2+n=  6is n=    8

Step by step solution

01

Apply the concept of equation: 

An equation is a mathematical statement that two expressions are equal. The solution of an equation is the value that when substituted for the variable makes the equation a true statement.

Example: 3x + 5 = 14 is an equation, in which 3x+5 and 14 are two expressions separated by an ‘’equal’’ sign.

02

What are the steps to solve an equation? 

Step 1: Simplify each side of the equation by removing parenthesis and combining the like terms.

Step 2: Use addition or subtraction to isolate the variable term on one side (preferably in the left side).

Step 3: Use Multiplication or Division to solve for the variable.

03

Question: Solve the equation using mental math.  2 + n = – 6   

Solving the equation step by step 2+n=  6

2+n=  622+n=  6    2       [  Subtract  2  from  both  sides  ]n=    8

The solution of the equation2+n=  6isn=    8

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