0.15(x+30)-0.07(x-10)=0.4

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Solution for 0.15(x+30)-0.07(x-10)=0.4 equation: 



0.15(x+30)-0.07(x-10)=0.4

We move all terms to the left:

0.15(x+30)-0.07(x-10)-(0.4)=0

We add all the numbers together, and all the variables

0.15(x+30)-0.07(x-10)-0.4=0

We multiply parentheses

0.15x-0.07x+4.5+0.7-0.4=0

We add all the numbers together, and all the variables

0.08x+4.8=0

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

0.08x=-4.8

x=-4.8/0.08

x=-60

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