thatgirl666
Solve?
4/5y+2=6
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ash2326
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\[\frac 4 5 y+2=6\]
Subtract both sides by 2, what would you get?
\[\frac 4 5 y +2- 2= 6-2\]
thatgirl666
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4/5 y= 4?
ash2326
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Yes, good :D
Now multiply both sides by 5
thatgirl666
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how do i multiply a fraction by 5?
ash2326
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\[\frac 4 5 y= 4\]
\[(\frac 4 5 \times 5 ) y= 4\times 5\]
\[(\frac 4 {\cancel 5} \times \cancel 5 ) y= 4\times 5\]
\[4y=4\times 5\]
Do you get this?
ash2326
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@thatgirl666 ????
thatgirl666
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Not really so the answer is 20?
thatgirl666
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Nevermind. i then divide by 4 and it equals 5
ash2326
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Yeah, let me explain you the multiplication of fractions
thatgirl666
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Ok
ash2326
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Suppose you have the fraction
\[\frac a b \]
You need to multiply by a no. say c
\[\frac ab \times c=\frac{a\times b}c\]
If you had to multiply by 1/c
\[\frac ab \times \frac 1 c=\frac a {b\times c}\]
here
\[a \ne b \ne c\]
Do you get this?
thatgirl666
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Yes i do now Thank you
ash2326
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If you multiply a/b by b, what would you get?
ash2326
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\[\frac a b \times b= ???\]
thatgirl666
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c
ash2326
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We don't even have c in the expression
\[\frac 2 4 \times 4=???\]
thatgirl666
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*Question Closed*
ash2326
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It's a simple thing, you should learn it