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130(0.50x)=70(0.80x)
We move all terms to the left:
130(0.50x)-(70(0.80x))=0
We add all the numbers together, and all the variables
130(+0.50x)-(70(+0.80x))=0
We multiply parentheses
0x-(70(+0.80x))=0
We calculate terms in parentheses: -(70(+0.80x)), so:We add all the numbers together, and all the variables
70(+0.80x)
We multiply parentheses
0x
We add all the numbers together, and all the variables
x
Back to the equation:
-(x)
=0
x=0/1
x=0
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