Question

add all the terms 12x,12,-25x,-25y, 1, x, 12y, y, -25

Answer 1

Full answer is in the pic

hope it helps:)

Answer 2

Answer:

The addition of the terms  12x,12,-25x,-25y, 1, x, 12y, y, -25 is  -12 (x + y + 1)

Step-by-step explanation:

We need to add the terms, 12x,12,-25x,-25y, 1, x, 12y, y, -25

Note that, coefficients of only like terms can be added,

Lets begin the addition,

12x + 12 + (-25x) + (-25y) + 1 + x + 12y + y + (-25)

removing the brackets,

12x + 12 - 25x - 25y + 1 + x + 12y + y - 25 (since + multiplied by - is -)

Lets group similar terms together,

(12x - 25x + x)+(- 25y + 12y + y) - 25 + 12 + 1

= (12-25+1)x + (-25+12+1)y -25+12+1

= -12x - 12y - 12

taking -12 common from all terms,

= -12 (x + y + 1)