Question

Find the difference. (3a - 6b +12)- (6a - 2b+ 7). Show all steps.

PLEAS HELP ITS FOR A TEST

Answer 1

-3a-4b+5

(3a - 6b +12)- (6a - 2b+ 7).

step 1: remove parentheses and change 2b +7 to 2b -7 and 6a -2b to 6a +2b

3a - 6b +12- 6a + 2b- 7

-3a-4b+5

step 2: from 3a - 6b +12- 6a +2b- 7

subtract: 3a - 6a= -3a.

now its -3a - 6b + 12 - 6a + 2b - 7

then 6b - 2= 4

now is -3a - 4b + 12 - 7

then 12 - 7 =5

Answer: -3a-4b+5

sorry is messy