Question

Can someone show me how to justify the steps in this?

11x-12+8x+2=180
19x-10+180
19x+190
x+10
11*10-12= 98
4*10+1=41
41*2=82
98+82=180
98+41=139
AEC=139

Answer 1

i can

Answer 2

you add the 11x and 8x together

Answer 3

then the -12 +2 which gives you -10

Answer 4

you add the 10 to the other side with the 180 and you get 190

Answer 5

then you divide by 19x to the 180

Answer 6

thats the first part i dont think i understand the others let me look

Answer 7

11*10=110 then you subtract the 12 and you get 98

Answer 8

4*10=40+1=41

Answer 9

41*2=82

Answer 10

you add the 98 and the 82 together to get 180

Answer 11

then the 98 and 41 to receive the 139