0.8(x+20)-4.5=0.7(5+x)-0.9x

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Solution for 0.8(x+20)-4.5=0.7(5+x)-0.9x equation: 



0.8(x+20)-4.5=0.7(5+x)-0.9x

We move all terms to the left:

0.8(x+20)-4.5-(0.7(5+x)-0.9x)=0

We add all the numbers together, and all the variables

0.8(x+20)-(0.7(x+5)-0.9x)-4.5=0

We multiply parentheses

0.8x-(0.7(x+5)-0.9x)+16-4.5=0



We calculate terms in parentheses: -(0.7(x+5)-0.9x), so:

0.7(x+5)-0.9x

We add all the numbers together, and all the variables

-0.9x+0.7(x+5)

We multiply parentheses

-0.9x+0.7x+3.5

We add all the numbers together, and all the variables

-0.2x+3.5

Back to the equation:

-(-0.2x+3.5)



We add all the numbers together, and all the variables

0.8x-(-0.2x+3.5)+11.5=0

We get rid of parentheses

0.8x+0.2x-3.5+11.5=0

We add all the numbers together, and all the variables

x+8=0

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

x=-8

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