Answer:
distributive property
Step-by-step explanation:
2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180
16x-12=(7-2)×180
(7-2)×180 Work this out on a calculator
And then that answer=16x-12
Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.
Compare two variables each time
Each term is equal the preceding term plus 3. Therefore the next term is 13 and the difference is +3.
A=bh/2 6*3+1 2 la parte superior sera 12
