What is a+0.64=8.5?

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baxthum8's profile pic

baxthum8 | High School Teacher | (Level 3) Associate Educator

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Solve `a + 0.64 = 8.5` .

to solvean equation we must isolate the variable.  In order to "get rid" of +0.64 we must execute the opposite operation, or subtract 0.64 from each side.

`a + 0.64 - 0.64 = 8.5 - 0.64`

`a + 0 = 7.86`

`a = 7.86`

The solution is a = 7.86.

tiburtius's profile pic

tiburtius | High School Teacher | (Level 2) Educator

Posted on

This is a linear equation which you can solve in the following way.

`a+0.64=8.5`

Now you take `0.64` from left side and move it to the right side of equal sign and while you do that you must change it's sign from `+`  to `-.`

`a=8.5-0.64`

`a=7.86`   

Hence your solution is 7.86.

malkaam's profile pic

malkaam | Student, Undergraduate | (Level 1) Valedictorian

Posted on

a + 0.64 = 8.5 ?

To solve this the variable a must be isolated, this will help us getting the value of the unknown variable a,

a + 0.64 = 8.5

a + 0.64 - 0.64 = 8.5 - 0.64        Subtract 0.64 from both sides

a = 8.5 - 0.64  

a = 7.86 Answer.

jess1999's profile pic

jess1999 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

 a + 0.64 = 8.5

To solve this equation we have to get " a " by itself first .  In order to get " a " by itself subtract .64 on both sides . 

By subtracting , you should get

a = 7.86 which is your answer

Wiggin42's profile pic

Wiggin42 | Student, Undergraduate | (Level 2) Valedictorian

Posted on

We need to find out what is the value of a , given that  a + 0.64=8.5

This is a linear equation that can be solved very easily. 

a + 0.64 = 8.5

To get the variable by it self , we have to undo whatever is being done to it, so subtract .64 from both sides and you get

a = 7.86

atyourservice's profile pic

atyourservice | Student, Grade 11 | (Level 3) Valedictorian

Posted on

`a+0.64=8.5`  minus .64 on both sides

`a+0.64-0.64=8.5-0.64`  this will cancel out the .64 on the left and you will have

`a=7.86`

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