7a+(1.4-a)=6.4

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Solution for 7a+(1.4-a)=6.4 equation: 



7a+(1.4-a)=6.4

We move all terms to the left:

7a+(1.4-a)-(6.4)=0

We add all the numbers together, and all the variables

7a+(-1a+1.4)-(6.4)=0

We add all the numbers together, and all the variables

7a+(-1a+1.4)-6.4=0

We get rid of parentheses

7a-1a+1.4-6.4=0

We add all the numbers together, and all the variables

6a-5=0

We move all terms containing a to the left, all other terms to the right

6a=5

a=5/6

a=5/6

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