80a+.30=40a+.70

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Solution for 80a+.30=40a+.70 equation: 



80a+.30=40a+.70

We move all terms to the left:

80a+.30-(40a+.70)=0

We add all the numbers together, and all the variables

80a-(40a+0.7)+.30=0

We add all the numbers together, and all the variables

80a-(40a+0.7)+0.3=0

We get rid of parentheses

80a-40a-0.7+0.3=0

We add all the numbers together, and all the variables

40a-0.4=0

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

40a=0.4

a=0.4/40

a=0.4/40

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