Easy
first term is n=1
so 10th term is n=10
5(10)+100=50+100=150
150 is 10th term
-t-3 and 3-t are not the same since t-3 would result in a negative answer since both -t and -3 are negative. While in t-3 t is positive and -3 is negative. it is wrong if its left as t-3 since -t-3=3-t is false.
(2x-6) + 4(x-3) {distribute 4 out and expand problem}
2x+6+4x-12 {combine like terms}
6x-6 {your answer}
The answer on a app i have says it’s -3x - 7 so the person above me is right
