0.4(a-1)+3=7

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Solution for 0.4(a-1)+3=7 equation: 



0.4(a-1)+3=7

We move all terms to the left:

0.4(a-1)+3-(7)=0

We add all the numbers together, and all the variables

0.4(a-1)-4=0

We multiply parentheses

0.4a-0.4-4=0

We add all the numbers together, and all the variables

0.4a-4.4=0

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

0.4a=4.4

a=4.4/0.4

a=11

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