0.25(x+30)-0.04(x-20)=18.8

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Solution for 0.25(x+30)-0.04(x-20)=18.8 equation: 



0.25(x+30)-0.04(x-20)=18.8

We move all terms to the left:

0.25(x+30)-0.04(x-20)-(18.8)=0

We add all the numbers together, and all the variables

0.25(x+30)-0.04(x-20)-18.8=0

We multiply parentheses

0.25x-0.04x+7.5+0.8-18.8=0

We add all the numbers together, and all the variables

0.21x-10.5=0

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

0.21x=10.5

x=10.5/0.21

x=50

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