Solve for y 6.4-y=6 2/5

Math
6.4-y=625
Convert 625 to an improper fraction.
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A mixed number is an addition of its whole and fractional parts.
6.4-y=6+25
Add 6 and 25.
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To write 6 as a fraction with a common denominator, multiply by 55.
6.4-y=6⋅55+25
Combine 6 and 55.
6.4-y=6⋅55+25
Combine the numerators over the common denominator.
6.4-y=6⋅5+25
Simplify the numerator.
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Multiply 6 by 5.
6.4-y=30+25
Add 30 and 2.
6.4-y=325
6.4-y=325
6.4-y=325
6.4-y=325
Move all terms not containing y to the right side of the equation.
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Subtract 6.4 from both sides of the equation.
-y=325-6.4
To write -6.4 as a fraction with a common denominator, multiply by 55.
-y=325-6.4⋅55
Combine -6.4 and 55.
-y=325+-6.4⋅55
Combine the numerators over the common denominator.
-y=32-6.4⋅55
Simplify the numerator.
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Multiply -6.4 by 5.
-y=32-325
Subtract 32 from 32.
-y=05
-y=05
Divide 0 by 5.
-y=0
-y=0
Multiply each term in -y=0 by -1
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Multiply each term in -y=0 by -1.
(-y)⋅-1=0⋅-1
Multiply (-y)⋅-1.
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Multiply -1 by -1.
1y=0⋅-1
Multiply y by 1.
y=0⋅-1
y=0⋅-1
Multiply 0 by -1.
y=0
y=0
Solve for y 6.4-y=6 2/5

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