840=40*x+(15*(x*1.5))

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Solution for 840=40*x+(15*(x*1.5)) equation: 



840=40x+(15(x*1.5))

We move all terms to the left:

840-(40x+(15(x*1.5)))=0

We add all the numbers together, and all the variables

-(40x+(15(+x*1.5)))+840=0



We calculate terms in parentheses: -(40x+(15(+x*1.5))), so:

40x+(15(+x*1.5))



We calculate terms in parentheses: +(15(+x*1.5)), so:

15(+x*1.5)

We multiply parentheses

22.5x

Back to the equation:

+(22.5x)



We add all the numbers together, and all the variables

40x+(+22.5x)

We get rid of parentheses

40x+22.5x

We add all the numbers together, and all the variables

62.5x

Back to the equation:

-(62.5x)



We add all the numbers together, and all the variables

-(+62.5x)+840=0

We get rid of parentheses

-62.5x+840=0

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

-62.5x=-840

x=-840/-62.5

x=13+18.333333333333/41.666666666667

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