7.8+2(0.75x+0.4)=-6.4x+4(0.5x-0.8)

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Solution for 7.8+2(0.75x+0.4)=-6.4x+4(0.5x-0.8) equation: 



7.8+2(0.75x+0.4)=-6.4x+4(0.5x-0.8)

We move all terms to the left:

7.8+2(0.75x+0.4)-(-6.4x+4(0.5x-0.8))=0

We multiply parentheses

0x-(-6.4x+4(0.5x-0.8))+0.8+7.8=0



We calculate terms in parentheses: -(-6.4x+4(0.5x-0.8)), so:

-6.4x+4(0.5x-0.8)

We multiply parentheses

-6.4x+0x-3.2

We add all the numbers together, and all the variables

-5.4x-3.2

Back to the equation:

-(-5.4x-3.2)



We add all the numbers together, and all the variables

x-(-5.4x-3.2)+8.6=0

We get rid of parentheses

x+5.4x+3.2+8.6=0

We add all the numbers together, and all the variables

6.4x+11.8=0

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

6.4x=-11.8

x=-11.8/6.4

x=-1+3.8571428571429/4.5714285714286

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