(21.75)(23.34)=7X+5(x+4)+6x+10(x+7)+15(x+7)+123.5

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Solution for (21.75)(23.34)=7X+5(x+4)+6x+10(x+7)+15(x+7)+123.5 equation:



(21.75)(23.34)=7X+5(X+4)+6X+10(X+7)+15(X+7)+123.5
We move all terms to the left:
(21.75)(23.34)-(7X+5(X+4)+6X+10(X+7)+15(X+7)+123.5)=0
We add all the numbers together, and all the variables
-(7X+5(X+4)+6X+10(X+7)+15(X+7)+123.5)+507.645=0
We calculate terms in parentheses: -(7X+5(X+4)+6X+10(X+7)+15(X+7)+123.5), so:
7X+5(X+4)+6X+10(X+7)+15(X+7)+123.5
We add all the numbers together, and all the variables
13X+5(X+4)+10(X+7)+15(X+7)+123.5
We multiply parentheses
13X+5X+10X+15X+20+70+105+123.5
We add all the numbers together, and all the variables
43X+318.5
Back to the equation:
-(43X+318.5)
We get rid of parentheses
-43X-318.5+507.645=0
We add all the numbers together, and all the variables
-43X+189.145=0
We move all terms containing X to the left, all other terms to the right
-43X=-189.145
X=-189.145/-43
X=4+14.9737991266/37.5545851528

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