Question

(2x+3y)-(x+y)

Answer 1

\(\left(2x+3y\right)-\left(x+y\right)\)

\(=2x+3y-x-y\)

\(=\left(2x-x\right)+\left(3y-y\right)\)

\(=x+2y\)

Answer 2

\(\left(2x+3y\right)-\left(x-y\right)\)

=\(2x+3y-x-y\)

=\(\left(2x-x\right)+\left(3y-y\right)\)

=\(x+2y\)

Nhớ tick cho mình nha!