90+.4x=60+.7x

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Solution for 90+.4x=60+.7x equation: 



90+.4x=60+.7x

We move all terms to the left:

90+.4x-(60+.7x)=0

We add all the numbers together, and all the variables

.4x-(.7x+60)+90=0

We get rid of parentheses

.4x-.7x-60+90=0

We add all the numbers together, and all the variables

-0.3x+30=0

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

-0.3x=-30

x=-30/-0.3

x=+100

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