Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(x+4y)-(2x-y)$$

Answer

5*y-x

Solution


Remove parentheses.
\[x+4y-2x+y\]
Collect like terms.
\[(x-2x)+(4y+y)\]
Simplify.
\[-x+5y\]
Regroup terms.
\[5y-x\]
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