.9(x+30)+.7x=91

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Solution for .9(x+30)+.7x=91 equation: 



.9(x+30)+.7x=91

We move all terms to the left:

.9(x+30)+.7x-(91)=0

We add all the numbers together, and all the variables

.7x+.9(x+30)-91=0

We multiply parentheses

.7x+0.9x+27-91=0

We add all the numbers together, and all the variables

1.6x-64=0

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

1.6x=64

x=64/1.6

x=40

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