Question

Add the following algebraic expresssions 2x-10y, 9y-12x, x+y

Answer 1

Answer:

(2x-10y) +(9y-12x) +(x+y)

=2x -10y+9y-12x +x+y

Now, adding the same terms

=(2x+(-12x) +x) +(-10y +9y+y)

=(3x-12x) +(-10y+10y) [- + = -]

= -6x