.3t+.4(30-t)=10.9

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Solution for .3t+.4(30-t)=10.9 equation: 



.3t+.4(30-t)=10.9

We move all terms to the left:

.3t+.4(30-t)-(10.9)=0

We add all the numbers together, and all the variables

.3t+.4(-1t+30)-(10.9)=0

We add all the numbers together, and all the variables

.3t+.4(-1t+30)-10.9=0

We multiply parentheses

.3t-0.4t+12-10.9=0

We add all the numbers together, and all the variables

-0.1t+1.1=0

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

-0.1t=-1.1

t=-1.1/-0.1

t=+11

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